Percentage (Railway Maths) (Part – III)

Total Questions: 50

1. The present population of a town is 50,000. If the population of the town increases by 4% annually, then what will be the population after 2 years? [RRB NTPC 05/01/2021 (Evening)]

Correct Answer: (b) 54,080
Solution:

2. If 35% of x is 140, then what is the value of x? [RRB NTPC 05/01/2021 (Evening)]

Correct Answer: (b) 400
Solution:

3. The value of a car depreciates at the rate of 20% every year. After two years the value of the car will be Rs. 4,80,000. The original price of the car is: [RRB NTPC 07/01/2021 (Morning)]

Correct Answer: (c) Rs. 7,50,000/-
Solution:

4. In an examination a student scored 65% marks but was 20 marks below the qualifying marks. Another student scored 80% marks and scored 5% more marks than the qualifying marks. Total marks of the examination are: [RRB NTPC 07/01/2021 (Morning)]

Correct Answer: (b) 200
Solution:

5. The population of a town increases by 10% every year. If the present population is 20,000. in the next year it will be: [RRB NTPC 07/01/2021 (Evening) ]

Correct Answer: (d) 22,000
Solution:

6. The price of sugar increased by 10%. A family of 5 members did not want to increase their expenditure. What is the percentage reduction in their consumption of sugar? [RRB NTPC 08/01/2021 (Morning) ]

Correct Answer: (b)
Solution:

7. In a school the ratio of the number of boys and girls is 5 : 6. 20% boys and 25% girls are scholarship holders. How many students did not get a scholarship? [RRB NTPC 08/01/2021 (Morning) ]

Correct Answer: (c) (850/11) %
Solution:

8. Due to a 25% reduction in the price of wheat per kg, John is able to buy 5 kg more for Rs. 600. What is the original price of wheat per kg? [RRB NTPC 08/01/2021 (Evening)]

Correct Answer: (d) Rs. 40
Solution:

9. A man bought 2 articles for Rs. 3,000 each. He sold one article at 10% profit and another article at 5% profit. Find the total percentage profit he earned? [RRB NTPC 08/01/2021 (Evening)]

Correct Answer: (b) 7.5%
Solution:

10. If the length of side of a square is increased by 10%, what is the percentage increase in its area? [RRB NTPC 08/01/2021 (Evening) ]

Correct Answer: (c) 21%
Solution: