46. Ayesha has only ₹5 and ₹10 coins with her. If the total number of coins she has is 25 and the amount of money with her is ₹160, then the number of ₹5 and ₹10 coins with her are
(1) 15 and 10 respectively
(2) 20 and 5 respectively
(3) 18 and 7 respectively
(4) 10 and 15 respectively
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47. Which of the following statements is not correct?
(1) A prime number has only two factors,
(2) There are only four single digit prime numbers.
(3) All prime numbers are odd numbers.
(4) There are infinitely many prime numbers.
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48. A number that is divisible by all the numbers from 1 to 10 (both inclusive) is
(1) 604
(2) 2520
(3) 10
(4) 100
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49. Evaluate :
17.5×3-21 + 7 – 3 x 12.5
(1) 120
(2) 50
(3) 52.5
(4) 12
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50. One-sixth of the trees in a garden are neem trees. Half of the trees are Ashoka trees and the remaining are eucalyptus trees. If the number of neem trees is five, how many eucalyptus trees are there in the garden ?
(1) 15
(2) 20
(3) 5
(4) 10
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51. A train leaves Delhi on 29th August, 2019 at 16: 30 hours and reaches its destination on 31st August at 08 : 45 hours. The total travel time of the journey is
(1) 39 hours 45 minutes
(2) 40 hours 15 minutes
(3) 36 hours 15 minutes
(4) 38 hours 45 minutes
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52. In which of the following, lengths have been arranged in decreasing order ?
(1) 8 m, 80 dm 8 cm, 8500 mm, 800 cm 8 mm
(2) 8500 mm, 80 dm 8 cm, 800 cm 8 mm, 8 m
(3) 8500 mm, 800 cm 8 mm, 80 dm 8 cm, 8 m
(4) 80 dm 8 cm, 8500 mm, 8 m, 800 cm 8 mm
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53. The main purpose of introducing ‘mapping’ in the primary Mathematics curriculum is/are
A. to promote spatial thinking
B. to promote proportional reasoning
C. to make subject easy and interesting
D. to break the monotony of numbers
(1) A&B
(2) B&C
(3) A&C
(4) A&D
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54. A 180 cm long wire is formed into a rectangle. If the width of this rectangle is 30 cm, what is its length ?
(1) 90 cm
(2) 120 cm
(3) 45 cm
(4) 60 cm
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55. When asked to write 44, some students of grade II wrote it as 404. As a teacher, how will you address this?
(1) group them with those who have done it correctly
(2) tell them to find out correct answer
(3) correct their answer in their copies
(4) explain principle of exchange using concrete material
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56. Which of the following topics are not part of primary school Mathematics curriculum as per NCF 2005 ?
(1) Patterns
(2) Ratio
(3) Tessellation
(4) Symmetry
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57. Which of the following resources/TLM can be used by the teacher to show that two rectangles of different dimensions can have same area without using formula ?
A. Scale
B. Graph paper
C. Thread
D. Tiles
(1) only C
(2) A & D
(3) only B
(4) B & D
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58. Which of the following in the mont Important aspect of making lesson plan while teaching Mathematics to primary school children ?
(1) providing opportunities to students to allow construction of concepts,
(2) writing activities and questions for reference.
(3) following the sequence of text book,
(4) presenting mathematical concepts in structured manner,
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59. Which of the following could be contributing factor to underachievement in mathematics?
(1) Nature of Mathematics
(2) Innate ability of person
(3) Gender
(4) Socio-cultural backbroud
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60. Which of the following is the most appropriate strategy to explain that ¼ less than ⅓ ?
(1) using Dienes blocks
(2) using number chart
(3) using LCM method
(4) using paper strips
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CTET exam paper 1 – 8 December 2019 – Child Development & Pedagogy (Answer Key)
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