Simple Interest (Railway Maths) (Part – II)

Total Questions: 50

21. A sum of Rs. 5,000 is invested at 10% simple interest per annum. In how many years will the amount of interest become Rs.1,500? [RRB NTPC 29/12/2020 (Evening) ]

Correct Answer: (a) 3
Solution:

22. Anil Kumar took a loan of 24,000 with simple interest for as many years as the rate of interest. If he paid 19,440 as interest at the end of the loan period, what was the rate of interest? [RRB NTPC 30/12/2020 (Evening)]

Correct Answer: (b) 9%
Solution:

23. Anil lent Rs. 7,200 to Dubey for 3 years and Rs. 8,400 to Raghav for 4 years on simple interest at the same rate of interest and received Rs. 4,968 in total from them as interest. Find the rate of interest p.a. [RRB NTPC 04/01/2021 (Evening)]

Correct Answer: (c) 9%
Solution:

24. Which of the following is correct, when a formula has its symbolic meaning (A - Amount, P - Principal, SI - simple interest)? [RRB NTPC 05/01/2021 (Evening)]

Correct Answer: (a) A = P + SI
Solution:

Amount = Principal + simple interest , A = P + SI

25. Bhawna borrowed Rs. 4,500 from a lender at the rate of 15% per annum, simple interest on 26 March 2018 and cleared the loan on 7 June of the same year. What amount did she pay to clear her loan? [RRB NTPC 07/01/2021 (Evening)]

Correct Answer: (b) Rs. 4,635
Solution:

26. Rahim invested a certain sum at 5% simple interest for 3 years. His friend Hiralal invested the same sum for 2 years at 7% simple interest. Rahim got Rs. 30 more interest than Hiralal. What was the amount invested by them? [RRB NTPC 08/01/2021 (Morning)]

Correct Answer: (a) Rs. 3,000.00
Solution:

27. Dalip Rai borrowed Rs. 24,000 from Amarjeet at a simple interest of 9% per annum. Find the sum he will have to return after 3 years. [RRB NTPC 09/01/2021 (Morning)]

Correct Answer: (c) Rs. 30,480
Solution:

28. Lalit gave a loan of Rs 12000 to his friend Tarun at simple interest for 2 years and got Rs 1200 as interest. Find the rate of interest per annum. [RRB NTPC 10/01/2021 (Morning) ]

Correct Answer: (b)
Solution:

29. How long will it take a sum of money invested at 6% p.a. On simple interest to increase its value by 50%? [RRB NTPC 11/01/2021 (Morning) ]

Correct Answer: (b)
Solution:

30. A sum of Rs800 becomes Rs 920 in 3 years at simple interest. If interest is increased by 4%, then the amount will increase to: [RRB NTPC 12/01/2021 (Evening) ]

Correct Answer: (d) Rs 1,016
Solution: