Question

in how many years will the sum of rs12500 become rs 18750 at 10% annum rate of simple interest​

Answer 1

Answer:

Simple interest=Amount-Principle

= 18750-12500=6250

Time=S•I×100÷Principle×Rate

= 6250×100÷12500×10

= 625000÷125000=5Years

Answer 2

Answer:

Given Data,

Principal, P = 12500 Rs.

Rate per Annum, R = 10%.

No. Of years, N = assum N years.

Amount = 18750 Rs.

First find simple interest = Amount - Principal

Simple Interest = 18750 - 12500

= 6250 Rs.

Now,

Simple Interest =(Principal × Rate × No. of Years) ÷ 100

6250 = (12500 × 10 × N)÷100

6250 = 1250 × N

N = 6250÷1250

N = 5 years.

Number of years in which sum of rupees 12500 will become 18750 at 10% per annum = 5 years.