Percentage (Railway Maths) (Part – V)

Total Questions: 50

11. A man buys an article for Rs. 55.00 and sells it for Rs. 57.20. Find his gain percentage. [RRB NTPC 19/03/2021 (Morning)]

Correct Answer: (c) 4%
Solution:

12. If A’s income is 60% less than that of B’s income, then by what percentage is B’s income more than that of A? [RRB NTPC 19/03/2021 (Evening)]

Correct Answer: (b) 150%
Solution:

Let income of B = 100
So, income of A = 100 - 60 = 40
B’s income is more than by A = 60/40 × 100 = 150 %

13. If A exceeds B by 30% and B is less than C by 20%, then A : C is: [RRB NTPC 19/03/2021 (Evening)]

Correct Answer: (b) 26 : 25
Solution:

Let C = 100
B = 100 - 20 = 80
A = 80 + 30% of 80 = 80 + 24 = 104
A : C = 104 : 100 = 26 : 25

14. Hema decided to donate 15% of her salary to a charitable trust. On the day of donation she changed her mind and donated Rs. 4,500 which is 125% of what she had decided earlier. Find Hema’s salary. [RRB NTPC 21/03/2021 (Evening) ]

Correct Answer: (b) 24,000
Solution:

15. After deducting 10% from a certain sum, and then deducting 20% from the remainder, a sum of Rs. 3,600 is left. Find the original sum (in Rs.). [RRB NTPC 21/03/2021 (Evening)]

Correct Answer: (c) 5,000
Solution:

16. Find the value of x if, 20% of 75 = 225 − x% of 420. [RRB NTPC 01/04/2021 (Morning)]

Correct Answer: (a) 50
Solution:

17. What percentage of 3/11 is 1/121 ? [RRB NTPC 01/04/2021 (Evening) ]

Correct Answer: (d)
Solution:

18. If x% of y is 2000 and y% of z is 4000, then the relation between x and z is: [RRB NTPC 06/04/2021 (Morning)]

Correct Answer: (a) z = 2x
Solution:

19. When 30% of a number is added to another number, the second number becomes 140% of itself. The ratio of the first number to the second number is: [RRB NTPC 06/04/2021 (Morning)]

Correct Answer: (d) 4 : 3
Solution:

20. A shopkeeper divided a sum of Rs. 2,50,000 between his three sons in a proportion of 30%, 45% and 25% respectively. How much did each son inherit? [RRB NTPC 07/04/2021 (Evening)]

Correct Answer: (d) 75,000, 1,12,500 and 62,500
Solution: