Advertisements
Advertisements
Question
Meera borrowed Rs 12,500 on compound interest from Rajeev for 2 years when the rates of interest for successive years were 8% and 10%. If Meera returned Rs 7,500 at the end of the first year, find the amount she has to return at the end of the second year.
Advertisements
Solution
P = Rs. 12,500, R = 8 °/o p.a.
Interest for first year
= `("Rs" 12500 xx 8 xx 1)/100`
= Rs 1,000
Amount due after 1st year =Rs. 12,500 +Rs. 1,000 =Rs 13,500
Amount paid after 1st year= Rs. 7,500
Balance amount= Rs. 13,500 - Rs. 7,500 =Rs. 6,000
Interest for second year when r = 10°/o p.a.
`=( "Rs" 6000 xx 10 xx 1)/100`
= Rs 600
Amount due after 2nd year
= Rs. 6,000 + Rs. 600 =Rs 6.600
Meera has to return Rs 6,600 to Rajeev at the end of second year
RELATED QUESTIONS
A sum of Rs. 65000 is invested for 3 years at 8 % p.a. compound interest.
Find the compound interest earned in the last year.
Alisha invested Rs 75000 for 4 years at 8 % p.a. compound interest,
Find the interest earned in the third year.
Neha loaned Rs 27500 to a friend for 1 3/4 years at 8 % p.a. compound interest. Find the interest earned by her.
Calculate The Amount and the Cornpound Interest for the Following:
Rs 15,000 for 2 years at 6°/o for the first year and 7°/o for tl1e second year.
Ramesh saves Rs 4,000 every year and invests it at 10% p.a. compound interest. Calculate his savings at the end of the third year.
Manoj saves Rs 5,000 every year and invests it at 12% p.a. compound interest. Calculate his savings at the end of the third year.
Neena's savings increases by Rs 1,000 every year. If she saves Rs 4,000 in the first year and invests it at 15% compound interest, find her total savings at the end of the third year.
Find the sum invested at 8% p.a. compound interest on which the interest for the third year exceeds that of the first year by Rs 166.40.
Rs.16,000 is invested at 5% compound interest compounded per annum. Use the table, given below, to find the amount in 4 years.
| Year ↓ |
Initial amount (Rs.) |
Interest (Rs.) |
Final amount (Rs.) |
| 1st | 16,000 | 800 | 16,800 |
| 2nd | ........... | ........... | ........... |
| 3rd | ........... | ........... | ........... |
| 4th | ........... | ........... | ........... |
| 5th | ........... | ........... | ........... |
6000 workers were employed to construct a river bridge in four years. At the end of first year, 20% workers were retrenched; At the end of second year 5% of the workers at that time were retrenched. However, to complete the project in time, the number of workers was increased by 15% at the end of third year. How many workers were working during the fourth year?
