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Directions: Answer the following questions by selecting the most appropriate option.
31.
The ratio between the length and the perimeter of a rectangular plot is
1:3. What is the ratio between the length and breadth of the plot?
(1) 1: 2
(2) 2: 1
(3) 3: 2
(4) Data inadequate
Ans: (2)
32. If a * b = a2 + b2 and a . b = a2 - b2 , the value of (5 * 2) . 25 is
(1) 215
(2) 225
(3) 226
(4) 216
Ans: (4)
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33. If a, b and c are three natural numbers in ascending order, then
(1) c2 - a2 > b
(2) c2 - a2 = b2
(3) c2 - a2 < b2
(4) c2 + b2 = a2
Ans: (1)
34. 'Buy three, get one free.' What is the percentage of discount being offered here ?
(1) 33.33%
(2) 25%
(3) 20%
(4) 28.56%
Ans: (1)
35. The Value of √2 + √3 + √2 - √3 is
(1) √6
(2) 6
(3) 2√2
(4) 2√3
Ans: (3)
36. When recast, the radius of an iron rod is made one-fourth. If its volume remains constant, then the new length will become
(1) 1/4 times of the original
(2) 1/16 times of the original
(3) 16 times of the original
(4) 4 times of the original
Ans: (3)
37. Find the value of 547527/82 if 547.527/0.0082 = x
(1) x/10
(2) 10 x
(3) 100 x
(4) x/100
Ans: (3)
38. The smallest number by which 68600 must be multiplied to get a perfect cube is
(1) 5
(2) 10
(3) 8
(4) 12
Ans: (1)
39. A cyclist at 'C' is cycling towards 'B'. How far will he have to cycle from C before he is equidistant from both A and B ?
(1) 4 km
(2) 3 km
(3) 6 km
(4) 5 km
Ans: (4)
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40. Unit's digit in 132003 is
(1) 1
(2) 3
(3) 7
(4) 9
Ans: (3)
41. A square sheet ABCD when rotated on its diagonal AC as its axis of rotation sweeps a
(1) cone
(2) spindle
(3) cylinder
(4) trapezium
Ans: (2)
42. The area of a triangle with base x units is equal
to the area of a square with side x units. Then the altitude of the
triangle is
(1) x/2 units
(2) x units
(3) 2x units
(4) 3x units
Ans: (3)
43. Which is greatest among 33 and half %; 4/15 and 0.35 ?
(1) 33 and half %
(2) 4/15
(3) 0.35
(4) Cannot be compared
Ans: (3)
44. The factorisation of 25 - p2 - q2 - 2pq is
(1) (5 + p + q) (5 - p + q)
(2) (5 + p + q) (5 - P - q)
(3) (5 + p - q) (5 - p + q)
(4) (5 + p - q) (5 - p - q)
Ans: (2)
45.
A rectangle is divided horizontally into two equal parts. The upper
part is further divided into three equal parts and the lower part is
divided into four equal parts.Which fraction of the original rectangle
the shaded part ?
(1) 3/5
(2) 2/7
(3) 4/7
(4) 7/12
Ans: (4)
46. In the given figure, PS = SQ = SR and L SPQ = 54°. Find the measure of L x.
(1) 54°
(2) 72°
(3) 108°
(4) 36°
Ans: (1)
47. 2x - 13, 2x - 11, 2x - 9, 2x - 7 are consecutive
(1) Prime numbers
(2) Even numbers
(3) Odd numbers
(4) Natural numbers
Ans: (3)
48. The fractional equivalent of 57.12% (approx.) is
(1) 349/625
(2) 359/625
(3) 357/625
(4) 347/625
Ans: (3)
49. The ratio of the side and height of an equilateral triangle is
(1) 2 : 1
(2) 1 : 1
(3) 2 : √3
(4) √3 : 2
Ans: (3)
50.
If two adjacent sides of a square paper are decreased by 20% and 40%
respectively, by what percentage does the new area decrease?
(1) 48%
(2) 50%
(3) 52%
(4) 60%
Ans:
51. 4/16 - 1/8 = 3/8
6/7 - 2/9 = 4/2
The above represents the work of a student. If this error pattern continues, the student's answer to 5/11 - 2/7 will be
(1) 7/18
(2) 3/4
(3) 3/7
(4) 2/18
Ans: (2)
52.
A teacher in grade-VI provided each child with a centimeter grid paper
and a pair of scissors. She wanted them to explore how two-dimensional
shapes can be folded into three-dimensional objects. Which of the
following concepts are the students exploring?
(1) Rotation
(2) Reflection
(3) Nets
(4) Decimals
Ans:
53. When doing exponents, the work observed in a learner's notebook was as follows :
43 x 42 = 45
64 x 64 = 68
73 x 37 = 2110
The learner has not understood how to
(1) add exponents
(2) add exponents and multiply
(3) multiply numbers with same base
(4) multiply numbers with different bases
Ans: (4)
54.
Teachers, while discussing problem-solving as an approach to teaching
of mathematics, articulated four views. Which of the following views
doesnot justify the real meaning of this approach?
(1) 'I think questions on problem-solving should be made from situations based on real life.'
(2) 'I think many questions found in the mathematics textbook can be used for problem-solving.'
(3) 'I think it is better to connect problem-solving with general mathematics class.'
(4) 'I think there is no correlation between problem-solving and mathematical reasoning.'
Ans:
55.
Given linear equations I, II and III, a learner is not able to solve
III algebraically. The most likely area of difficulty is that the
learner has not understood
(1) that two equations can be added or subtracted to solve them
(2) that two equations can be solved by method of substitution
(3) the method of solving equations using graphs
(4) that both the equations in III can be altered by multiplying with suitable numbers
Ans: (2)
56.When
introducing mensuration, a teacher writes all the formulae on the board
before proceeding further. This reflects that she is following the
(1) Inductive approach
(2) Deductive approach
(3) Experimental approach
(4) Practical approach
Ans: (2)
57. Ameena is playing with matchsticks and adds one at each stage : Appu, on the other hand, makes a table:
Number of L's123...
Number of matchsticks246..
What is your observation about the two children in this situation?
(1) Ameena is only playing and Appu is doing mathematics
(2) Ameena will need lots of matchsticks to come to a generalisation. However, Appu would be faster
(3) Both Ameena and Appu are trying to make generalisations
(4) Ameena would be learning by doing and Appu may not be able to see the pattern at all
Ans: (1)
58. To be good in mathematics, one needs to
(1) remember solutions
(2) have mastery over calculations
(3) create and formulate problems through abstract thinking and logical reasoning
(4) memorise formulae
Ans: (3)
59. Students make errors while solving mathematical problems because
(1) they do not practise enough
(2) they do not refer to multiple textbooks
(3) their socio-economic status affects their performance
(4) they make alternative interpretations of concepts in their attempt to make meaning
Ans: (4)
60.
With an activity on paper folding, a teacher was trying to depict the
relationship of the areas of a parallelogram and a triangle. Which of
the following best depicts the transformation of stages?
(1)
(2)
(3)
(4)
Ans: (4)
61. Bakelite is used in making electrical appliances because it is a
(1) thermoplastic
(2) good conductor of heat
(3) good conductor of electricity
(4) good insulator of electricity
Ans: (4)
62. In which of the following cases of motion, are the distance moved and the magnitude of displacement equal ?
(1) A car moving on a straight road
(2) A car moving in a circular path
(3) A pendulum oscillating to and fro
(4) The Earth revolving around the Sun
Ans: (1)
63. LED and CFL are very commonly used as sources of light in homes. Which of the following statements is true ?
(1) CFL is better because LED contains toxic materials
(2) LED is better because CFL contains toxic materials
(3) Both are equally good
(4) Neither of them is good because both contain toxic materials
Ans: (2)
64. An air bubble inside water behaves like a
(1) concave lens
(2) convex lens
(3) plano-convex lens
(4) concave mirror
Ans: (1)
65.
A feather weighing 5 gm and a nail weighing 10 gm have the same kinetic
energy. Which of the following statements is true about the momentum of
the two bodies ?
(1) The lighter body will have higher momentum
(2) The heavier body will have higher momentum
(3) Both will have equal momentum
(4) It is not possible to compare the momentum. of two objects
Ans: (2)
66. If the pressure over a liquid increases, its boiling point
(1) decreases
(2) Increases
(3) does not change
(4) first decreases and then increases
Ans: (2)
67. A doctor prescribes a medicine to treat hyperacidity. The main ingredient of the medicine is
(1) Al(OH)3
(2) MgCl2
(3) CaC03
(4) Na2C03
Ans: (1)
68. Non-metallic oxides
(1) are acidic in nature
(2) are basic in nature
(3) are amphoteric in nature
(4) turn red litmus paper blue
Ans: (1)
69. The inner surfaces of food cans are coated with tin and not with zinc because
(1) zinc is costlier than tin
(2) zinc is more reactive than tin
(3) zinc has a higher melting point than tin
(4) zinc is less reactive than tin
Ans: (2)
70.
A man goes door to door posing as a goldsmith. He promises to bring
back the glitter on dull gold ornaments. An unsuspecting woman gives a
set of gold bangles to him which he dips in a particular solution. The
bangles sparkle but their weight has considerably reduced. The solution
used by the impostor probably is
(1) dil. HCI
(2) cone. HCI
(3) a mixture of cone. HCI and cone. HN03
(4) cone. HN03
Ans: (3)
71. Bleeding is stopped by the application of alum to a wound because
(1) the wound is plugged by the alum chunk
(2) alum coagulates the blood and forms a clot
(3) alum reduces the temperature near the wound
(4) alum is an antiseptic
Ans: (2)
72. When an iron nail is dipped in copper sulphate solution, the colour of
copper sulphate solution fades and a brownish layer is deposited over the iron
nail. This is an example of
(1)
combination reaction
(2)
decomposition reaction
(3)
double displacement reaction
(4)
displacement and redox reactions
Ans: (4)
73. While
diluting sulphuric acid, it is recommended that the acid should be added to
water because
(1)
acid has strong affinity for water
(2)
acid may break the glass container
(3)
dilution of acid is highly exothermic
(4)
dilution of acid is highly endothermic
Ans: (3)
74. The
thumb of humans moves more freely than other fingers due to the presence of
(1)
pivotal joint
(2)
gliding joint
(3)
hinge joint
(4)
saddle joint
Ans: (4)
75. Root
cap is absent in
(1)
Xerophytes
(2)
Hydrophytes
(3)
Mesophytes
(4)
Halophytes
Ans: (2)
76. Adding
salt and sugar to food substances helps In preserving them for a longer
duration. It is because excess salt and sugar
(1)
plasmolyse the microbial cells
(2)
cause rupturing of microbial cells
(3)
cause change in the shape of microbial cells
(4)
remove water from food
Ans: (1)
77. Hormone
Adrenaline
(1)
helps control level of sugar in the blood
(2)
helps the body to adjust stress level when one is very angry or worried
(3)
helps control height
(4)
helps control balance of electrolytes in the body
Ans: (2)
78. The
green house effect which is causing an increase in the atmospheric temperature
is mainly due to
(1)
oxygen
(2)
nitrogen
(3)
carbon dioxide
(4)
sulphur
Ans: (3)
79. Green
plants appear to release oxygen instead of carbon dioxide into the atmosphere
during the day time because
(1)
green plants do not respire during the night time
(2)
green plants respire only during the night time
(3)
green plants respire during the day time but are involved in photosynthesis
during the night time
(4)
the rate of photosynthesis is higher than the rate of respiration during the day
time
Ans: (4)
80. A
common characteristic feature of plant sieve-tube cells and mammalian
erythrocytes is
(1)
absence of nucleus
(2)
absence of chloroplast
(3)
absence of cell wall
(4)
presence of haemoglobin
Ans: (1)
81. Most Boards of Education have banned the dissection of animals
because
(1)
animals are no longer available for dissection
(2)
procuring animals has become an expensive proposition
(3)
there is a need to sensitise students to prevention of cruelty to animals
(4)
they may spread new diseases
Ans: (3)
82. The
main aim of conducting Mathematics and Science Olympiads is to
(1)
promote excellence in the subject by nurturing creativity and
experimentation
(2)
grade students according to their capabilities
(3)
help students score high marks in professional examinations
(4)
grade schools based on the performance of their students
Ans: (1)
83. Four
applicants for a post of TGT (Science) were asked to plan a lesson on
"Consequences of Deforestation", Which one of the following lesson plans
reflects the scientific approach ?
(1)
Explains in detail the consequences of deforestation
(2)
Provides a variety of examples to explain the concept
(3)
Includes activities that children can perform in groups and draw conclusions
through a Power Point presentation
(4)
Mentions about the use of ICT to help students understand the concept
Ans: (3)
84. Ms.
Patel, Principal of a School XYZ, is keen about integrated approach to teaching
of Science rather than teaching different disciplines separately. The basis of
this is
(1)
non-availability of qualified teachers in her school to teach separate
disciplines
(2)
difficulty to adjust the teachers in the time-table
(3)
difficulty of students to adjust to different teachers
(4)
all the disciplines are interlinked and a teacher can draw on cross-curricular
linkages
Ans: (4)
85. A
teacher plans to teach "Components of Food" in Class-VI. Which of the following
can be used as an essential question ?
(1)
List the food items your mother serves you in lunch.
(2)
Why does your mother serve you a meal with a variety of food items ?
(3)
Does your mother prepare a definite set of food items for lunch every day?
(4)
Do you eat all the items served in your lunch every day?
Ans: (2)
86. While
teaching the concept, "force can change the shape of an object" to students, a
teacher plans the following activities:
a.
Explain concepts using commonly observed examples.
b.
Provide a dough on a plate and ask the students to press it down with the
hand.
c.
Show an audio-visual• film explaining the concept with some examples.
The
teacher is using different approaches to learning because
(1)
she wants to prove her knowledge
(2)
she knows she must follow her lesson plan
(3)
she wants to prepare students for a test
(4)
there are different kinds of learners in the class and she wants to address
multiple intelligences
Ans:
87. Which
of the following can be assessed when Geeta is using only MCQ as a tool to
assess "Nutrition in Humans" ?
(1)
Analytical ability to classify food items and make a poster
(2)
Misconceptions related to food habits
(3)
Learners' ability to apply knowledge and prepare a role play to present in the
morning assembly
(4)
Learners' ability to comprehend the importance of components of food and write a
long essay
Ans: (2)
88. A
Science teacher plans group activities to teach "Properties of Air" to her
students of Class-VI. Which one set of attributes would she like to have in the
students she selects as group leaders ?
(1)
Freedom to choose roles, work at their own pace and understanding
(2)
Ordering students to take roles and deliver in consonance with their
understanding
(3)
Giving major roles to brighter students to ensure the group finishes first
(4)
Assigning roles as per capability, motivating and coordinating among the group
members
Ans: (4)
89. While
selecting a performance task to help students develop research oriented skills
in a Science class, a teacher may pick up a topic
(1)
from the content given in the syllabus which must be completed in time
(2)
which majority of the students in a class find interesting
(3)
which she thinks is important for the students
(4)
related to a problem faced by students in their day-to-day functioning and which
is a part of the concepts to be covered for this class
Ans: (4)
90. While
investigating 'how water affects the germination of seeds', a teacher asked the
students to soak bean seeds on a bed of cotton wool for a few days and observe
the changes. What is the guideline that she forgot to mention?
To
place
(1)
many seeds on wet cotton
(2)
a few seeds on wet cotton
(3)
many seeds on dry cotton
(4)
a few seeds on dry cotton
Ans: (2)
