Question

Find the rate of interest if Principal = Rs 1500, Simple
interest = Rs 225, Time=3 years

Answer 1

✯ Question :-

• Find the rate of interest if Principal = Rs 1500, Simple
• interest = Rs 225, Time=3 years.

✯ Concept :-

• In this question, Principal, time and simple interest, but the rate of interest is not given. So we can find out the rate of interest by using the formula for Simple Interest.

✯ Solution :-

★ Simple Interest = PRT/100 ★

⇒225 = 1500 × R × 3/ 100

⇒225 = 15 × R × 3

⇒225 = 45 × R

⇒225/45 = R

⇒5 = R.

Therefore, the rate of interest is 5%.

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Answer 2

Answer:

r= (225×100)/(1500×3)

r=5% p.a

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