Quantitative Apitude-Compound Interest
Quantitative Apitude-Compound Interest
1. The amount of Rs. 7500 at compound interest at 4% per annum for 2 years, is :
- Rs. 7800
- Rs. 8100
- Rs. 8112
- Rs. 8082
2. If the interest on a sum of money at 5% per annum for 3 years is Rs. 1200, the compount interest on the same sum for the same period at the same rate, is :
- Rs. 1260
- Rs. 1261
- Rs. 1264
- Rs. 1265
3. If the difference between the compound interest, compounded half yearly and the simple interest on a sum at 10% per annum for one year is rs. 25, the sum is :
- Rs 9000
- Rs. 9500
- Rs. 10000
- Rs. 10500
4. The difference in compound interest and simple interest on a certain amount at 10% per annum at the end of the third year is Rs. 620. What is the principal amount ?
- Rs. 40000
- Rs. 120000
- Rs. 10000
- Rs. 20000
5. A man borrowed Rs. 800 at 10% per annum simple interest and immediately lent the whole sum at 10% per annum compound interest. What does he gain at the end of 2 years ?
- Rs. 6
- Rs. 8
- Rs. 10
- Rs. 12
6. On what sum of money will the simple interest for 3 years at 8% per annum be half of the compound interest on Rs. 400 for 2 years at 10% per annum ?
- Rs. 125
- Rs. 150
- Rs. 175
- Rs. 200
7. The compound interest on a certain sum at 5% per annum for 2 years is Rs. 328. the simple interest for tha sum at the same rate and for the same period will be :
- Rs. 320
- Rs. 322
- Rs. 325
- Rs. 326
8. What is the principal amount which earns Rs. 132 as compound interest for the second year at 10% per annum ?
- Rs. 1000
- Rs. 1200
- Rs. 1320
- Rs. 1188
9. A sum of money amounts to Rs. 4624 in 2 years and to Rs. 4913 in 3 years at compound interest. The sum is :
- Rs. 4096
- Rs. 4260
- Rs. 4335
- Rs. 4360
10. A sum of money placed at compound interest doubles itself in 5 years. It will amount to eight times itself in :
- 10 years
- 12 years
- 15 years
- 20 years