Perdisco (MYOB Based) Practice Set Solution. Perdisco is an online test which assess the students ability. After reading this, you will learn how to record transactions in Perdisco. For more…Full description
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Science Olympiad
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CLASS 3 SET-1
HINTS AND SOLUTIONS 1.
(A) : Total number of buttons = 15 Number of shirts = 3
21. (D): (D): 12 toffees have to be divided among 2 children \ One child will get = 12 ¸ 2 = 6 toffees 22. (A) : Number : Number of total crayons = 4 Number of blue crayon = 1 1 Required fraction = 4 23. (D): (A)
11. (B)
(B) 10 equal pieces
5 equal pieces
12. (B): Length (B): Length of the string = 74 cm Length of the ribbon = 74 + 38 = 112 cm 13. (D): 497
498
499
500
501
(C)
(D) 2 equal pieces
502
20 equal pieces
+1 +1 +1 +1 +1 14. (B) : : The time between 6 : 10 to 9 : 40 is 3 hours 30 mins.
24. (C): Height (C): Height of Raj = 52 inches Height of Mohit = 43 inches \ 52 > 43
27. (D): Time (D): Time taken to complete one round = 30 mins 1
Time taken to complete 2 rounds = 30 × 2 = 60 mins = 1 hr 28. (D): Number of balloons blown away = 17 Number of balloons left = 7 \
Total number of balloons he originally had = 17 + 7 = 24
29. (B): Number of boxes = 6 Number of cookies in each box = 10 \ Total number of cookies = 6 × 10 = 60 Number of boxes sold = 2 Number of cookies sold = 2 × 10 = 20 \ Number of remaining cookies = 60 – 20 = 40 30. (B): Number of parrots = 10 Number of legs each parrot has = 2 \ Total number of legs = 10 × 2 = 20 31. (A) : Total number of points of Team A = 320 + 610 = 930 Total number of points of Team B
Team B scored 980 – 930 = 50 more points than Team A. \
32. (B): Number of flowers in one bunch = 20 Total number of bunches = 5 + 2 = 7 \ Total number of flowers = 20 × 7 = 140 33. (B): The maximum number of balls is of yellow colour. Hence, yellow colour ball will come out the maximum number of times. 34. (A) : Number of markers Aryan gave to Bobby = 15 Number of markers Bobby now has = 19 Initial number of markers Bobby had = 19 – 15 = 4 35. (B): 2
6
4
Greatest possible 3 digit number formed = 642 Smallest possible 3 digit number formed = 246 Difference between the greatest and the smallest number formed = 642 – 246 = 396