ratio and proportion MCQs – Page 2

Practise focused ratio and proportion questions with marked answers for exam preparation and subject revision.

ratio and proportion Mcqs

21. If X:Y = 2:3, Y:Z = 4:5. Find X:Y:Z.
0

A. 2:03:05

B. 2:07:05

C. 8:12:15

D. 2:08:05

22. Two numbers are in the ratio 3 : 5. If 9 is subtracted from each, the new numbers are in the ratio 12 : 23. The smaller number is :________?
0

A. 33

B. 49

C. 27

D. 55

23. Find the fourth proportion to 3, 7 and 9.
0

A. 63

B. 21

C. 27

D. 31

24. A bag contains 50 paise, 1 rupee and 2 rupee coins in the ratio 2:5:8. If the total amount is Rs. 352, find the total number of coins in the bag.
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A. 160

B. 200

C. 240

D. 250

25. In what ratio should the profit of Rs.8000 be divided if X starts a business with an investment of Rs. 20000, Y invests Rs.7500 for 4 months and Z invests Rs.15000 after 3 months from the start of the business.
0

A. 16:02:03

B. 16 : 2 : 9

C. 6:09:01

D. 8:03:06

26. In a partnership for a business, Changaz invests Rs.6000 for complete year & Nasir invests Rs.3000 for 6 months. What is Nasirs share if they earn Rs.240 as profit?
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A. 120

B. 48

C. 80

D. 192

27. Two numbers are in the ratio 5:4 and their difference is 10.What is the largest number?
0

A. 40

B. 60

C. 30

D. 50

28. A class has 90 students. If the ratio of boys and girls is 7:8, find the number of boys in the class.
0

A. 48

B. 60

C. 70

D. 42

29. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number ?
0

A. 5 : 3

B. 2:05

C. 3:07

D. 7:03

30. The sum of three numbers is 98. If the ratio of the first to the second is 2 : 3 and that of the second to the third is 5 : 8, then the second number is :__________?
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A. 30

B. 48

C. 58

D. 20

31. Seats for Mathematics, Physics and Biology in a school are in the ratio 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats ?
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A. 6:07:08

B. None of these

C. 2 : 3 : 4

D. 6:08:09

32. The ratio of two numbers a and b is 3:5. If 2 is added to both the numbers, the ratio becomes 2:3. Find b.
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A. 15

B. 8

C. 10

D. 5

33. The ratio of the number of boys and girls in a college is 7 : 8. If the percentage iikcrease in the number of boys and girls be 20% and 10% respectively, what will be the new ratio ?
0

A. Cannot be determined

B. 8:09

C. 21 : 22

D. 17:18

34. If x% of 200=y% of 250, find y:x.
0

A. 4:5

B. 5:02

C. 2:05

D. 5:04

35. The sum of squares of three numbers is 280. If the numbers are in the ratio 3:5:6, find the greatest number.
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A. 8

B. 6

C. 12

D. 18

36. The sum of three numbers is 172. The ratio of the first and second numbers is 8:11. The ratio of the second and third is 5:7. Find the second number.
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A. 66

B. 55

C. 77

D. 44

37. The sum of cubes of two numbers is 280. If the numbers are in the ratio 2:3, find the smallest number.
0

A. 2

B. 6

C. 3

D. 4

38. The ratio of boys and girls in a class was 11:13. 8 girls and 4 boys join the class from this academic year and the ratio becomes 4:5. Find the strength of the class.
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A. 68

B. 72

C. 96

D. 108

39. The plan for a rectangular area is drawn to a scale of 1:500. If the length and breadth in the plan is 30 cm and 20 cm, find the actual area.
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A. 15000 m

B. 1200 m

C. 12000 m

D. 1500 m

40. A:B=2:3, B:C=3:4, A:D=4:5. Find C:D.
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A. 2:05

B. 8:5

C. 4:05

D. 6:05

Showing 21 to 40 of 47 mcqs