Compound Interest (Railway Maths) (Part – II)

Total Questions: 50

21. A sum of money invested at 10% compound interest per annum amounts to ₹10,164 in 2 years interest compounded annually. What was the sum invested ? [Level 3 (17/06/2022) Shift 2 ]

Correct Answer: (d) ₹ 8,400
Solution:

22. Find the answer of given question? [Level 3 (17/06/2022) Shift 3 ]

Correct Answer: (c) ₹ 5324
Solution:

23. A sum of ₹ 14000 amounts to ₹ 18515 in 2 years at a certain rate percent p.a. Interest compounded yearly. What will be the compound interest on the same sum , in the same time and at the same rate, if the interest is compounded 8 -monthly ? [Level 3 (17/06/2022) Shift 3 ]

Correct Answer: (c) ₹ 4634
Solution:

24. The simple interest on a sum of amount for 2 years at 10% per annum is Rs. 500. The compound interest on the same sum at the same rate for the same time is: [RRB NTPC 28/12/2020 (Morning)]

Correct Answer: (b) Rs. 525
Solution:

25. A sum of money amounts to Rs. 12,100 in 2 years and Rs. 13,310 in 3 years, when compounded annually. Find the rate of interest. [RRB NTPC 29/12/2020 (Morning)]

Correct Answer: (d) 10%
Solution:

26. A sum of money amounts to Rs.1600 in two years and Rs.1700 in three years, at compound interest, compounded annually. What is the rate of interest? [RRB NTPC 30/12/2020 (Morning)]

Correct Answer: (c) 6.25%
Solution:

27. Find the rate of interest for a sum that becomes 14641/10000 times of itself in 4 years compounded annually. [RRB NTPC 04/01/2021 (Evening)]

Correct Answer: (d) 10%
Solution:

28. A sum of Rs.12,000.00 deposited at compound interest becomes double at the end of 5 years. At the end of 15 years the sum will be: [RRB NTPC 07/01/2021 (Morning)]

Correct Answer: (d) Rs. 96,000.00
Solution:

29. The difference between the compound interest compounded annually and the simple interest on a certain sum of money for 2 years at 4% per annum is Rs. 20.00. The sum is: [RRB NTPC 07/01/2021 (Morning)]

Correct Answer: (c) Rs. 12,500.00
Solution:

30. A sum of money becomes Rs.10648 after 3 years and Rs. 9680 after 2 years of compound interest computed yearly. What is the rate of interest ? [RRB NTPC 08/01/2021 (Morning) ]

Correct Answer: (d) 10%
Solution: