Question

The difference between compound interest for a year payable half-yearly and simple interest
on a certain sum of money lent out at 10%
for a year is 15. Find the sum of money
lent out.
​

Answer 1

Answer:

6000 rs

Step-by-step explanation:

let sum is x RS

Now

rate is 10% yearly then half yearly rate is 10/2 = 5%

rate is 5 % bcoz of half yearly

so

X × 105/100×105/100 - X× 110/100 = 15

=> X × 21/20×21/20- X 11/10 = 15

=> 441x/400 - 11x/10 = 15

=> 441x- 440x = 15×400

=> X = 6000