Percentage (Railway Maths) (Part – VI)

Total Questions: 47

21. 25% of the 66.67% of 75% of the 80% of a number is 512. Find 40% of this number. [RPF Constable 19/01/2019 (Morning) ]

Correct Answer: (b) 2048
Solution:

22. 650 students took part in a national level examination. Of these, 47% of students received 81- 100% marks, 23% students received 61-80% marks and the remaining students got 41-60% marks. Find out the number of students who received 41 - 60 percent. [RPF Constable 19/01/2019 (Morning) ]

Correct Answer: (d) 195
Solution:

23. A bulb manufacturing company found that 11% of their total output was wasted. If the number of correct products is 2047, then find the number of defective products? [RPF S.I. 19/12/2018 (Morning) ]

Correct Answer: (c) 253
Solution:

24. Mark donates 14% of his salary to an organization for the blind, 16% to an organization for orphans, 12% to an organization for the physically challenged, and 13% of his salary to help set up a medical camp. He deposits the remaining ₹ 24570 in the bank for monthly expenses. How much amount does he donate to the organization for the disabled? [RPF S.I. 19/12/2018 (Morning) ]

Correct Answer: (c) ₹6552
Solution:

25. A bulb manufacturing company found that 11% of their total output was wasted. If the number of correct products is 4984, then find the number of defective products? [RPF S.I. 19/12/2018 (Evening) ]

Correct Answer: (a) 616
Solution:

26. The station master decided to increase the length of a rectangular digital board by 4% and decrease the width by 4%. Find the total change in the area of the board? [RPF S.I. 19/12/2018 (Evening) ]

Correct Answer: (c) 0.16% decrease
Solution:

27. Terlin scores 65 out of 80 in French, 75 out of 100 in English, 45 out of 70 in Spanish, and 25 out of 50 in Japanese. Find the total percentage of marks obtained by him? [RPF S.I. 19/12/2018 (Evening) ]

Correct Answer: (b) 70%
Solution:

28. A bulb manufacturing company found that 11% of their total products were damaged. If the number of safe products is 5785, then find the number of damaged products. [RPF S.I. 24/12/2018 (Morning) ]

Correct Answer: (c) 715
Solution:

29. Vimal received 72 out of 80 marks in French, 91 out of 100 in English, 63 out of 70 in Spanish and 44 out of 50 in Japanese. What was the total percentage achieved by him? (% In) [RPF S.I. 05/01/2019 (Morning)]

Correct Answer: (d) 90
Solution:

30. A shopkeeper allows a discount of 37% on the sale of an article after marking it up by 37% on its cost price. Then find the percentage of total profit or loss obtained. [RPF S.I. 06/01/2019 (Morning)]

Correct Answer: (a) 13.69% Loss
Solution: