Ratio & Proportion (Railway Maths) (Part – II)

Total Questions: 50

31. If 49 : x :: x : 81, and 64 : y :: y : 169, where x and y are both natural numbers, then find the value of 2x + 3y. [Group D 30/08/2022 (Afternoon)]

Correct Answer: (b) 438
Solution:

32. A number is divided into two parts such that one part of the number is 10 more than the other part, and the ratio of the two parts is 4 : 3. Find the initial number. [Group D 30/08/2022 (Afternoon)]

Correct Answer: (b) 70
Solution:

33. If 144 : b :: b : 36, and b > 0, find the value of b. [Group D 30/08/2022 (Afternoon)]

Correct Answer: (d) 72
Solution:

34. If 7, 12, 21 and x are in proportion, the value of x is : [Group D 30/08/2022 (Evening)]

Correct Answer: (a) 36
Solution:

35. Two numbers are in the ratio 2 : 7. If the first number is increased by 14 and the second number is decreased by 6, then the ratio becomes 4 : 3. What is the sum of the original two numbers? [Group D 02/09/2022 (Morning)]

Correct Answer: (b) 27
Solution:

36. If 1.6 : 0.6 :: 0.6 : x, find the value of x. [Group D 02/09/2022 (Afternoon)]

Correct Answer: (a) 0.225
Solution:

37. If a : b = 7 : 9 and b : c = 15 : 7, then a : b : c is : [Group D 02/09/2022 (Afternoon)]

Correct Answer: (b) 35 : 45 : 21
Solution:

38. If 3.2 : x :: x : 16.2, and x > 0, then find the value of x. [Group D 02/09/2022 (Evening)]

Correct Answer: (c) 7.2
Solution:

39. The salaries of A and B are in the ratio 3 : 4. On increasing the salaries of both A and B by ₹3,000, the new ratio of their salaries becomes 18 : 23. Find the salary of A after the increase. [Group D 06/09/2022 (Afternoon)]

Correct Answer: (d) ₹18,000
Solution:

40. If ₹2,400 is to be distributed between A and B in the ratio 7 : 5, then the share of B is : [Group D 08/09/2022 (Morning)]

Correct Answer: (d) ₹1,000
Solution: