Question

Certain sum of money lent at 10% p.a for 4 years produces thrice as much interest as Rs 5,600 in 3 years at 12% p.a. Find the sum.please give the procedure answer is Rs 17,640don't send useless answers or will be reported​

Answer 1

Let P = Rs. 100

A = Rs. 200

I = Rs. 200 – Rs. 100 = Rs. 100, T = 8 Years

R = (100 × I)/(P × T) = (100 × 100)/(100 × 8) = 100/8 = 25/2 %

Now again P = Rs. 100

A = Rs. 300

I = Rs. 300 – Rs. 100

= Rs. 200

R = 25/2%

T = (100 × I)/(P × R) = (100 × 200)/(100 × (25/2))

= (100 × 200 × 2)/(100 × 25) = 16 Years

So the given sum of money will become triple in 16 years.