Advertisements
Advertisements
प्रश्न
A man lends Rs. 12,500 at 12% for the first year, at 15% for the second year and at 18% for the third year. If the rates of interest are compounded yearly ; find the difference between the C.I. fo the first year and the compound interest for the third year.
उत्तर
For 1st year
P = Rs. 12500; R = 12%; T = 1 year
I = `[ 12500 xx 12 xx 1]/100` = Rs. 1500
A = 12500 + 1500 = Rs. 14000
For 2nd year
P = Rs. 14000; R = 15%; T = 1 year
I = `[14000 xx 15 xx 1]/100` = Rs. 2100
A = 14000 + 2100 = Rs. 16100
For 3rd year
P = Rs. 16100; R = 18%; T = 1 year
I = `[16100 xx 18 xx 1]/100`= Rs. 2898
A = 16100 + 2898 = Rs. 18,998
Difference between the compound interest of the third year and first year
= Rs. 2893 - Rs. 1500
= Rs. 1398
APPEARS IN
संबंधित प्रश्न
A sum of Rs. 65000 is invested for 3 years at 8 % p.a. compound interest.
Find the sum due at the end of the second 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.
Mohan borrowed Rs 25,000 at 10% p.a. compound interest. If he pays back Rs 7,500 every year, find the amount of loan outstanding at the beginning of the fourth 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.
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 | ........... | ........... | ........... |
A sum of money is lent at 8% per annum compound interest. If the interest for the second year exceeds that for the first year by Rs. 96, find the sum of money.
On a certain sum of money, the difference between the compound interest for a year, payable half-yearly, and the simple interest for a year is Rs. 180/- Find the sum lent out, if the rate of interest in both the cases is 10% per annum.
The population of a town 2 years ago was 62,500. Due to migration to cities, it decreases at the rate of 4% per annum. Find its present population.
