Question

How many years will200 amount to280at866perannum М.​

Answer 1

☞ Correct Question: -

In how many years will rupees 2000 amount to rupees 2420 at 10% per annum compound interest.

➩ Solution: -

Given,

P= Rs 2000

A= Rs 2420

R= 10 %

A = P(1 + R/100)ⁿ

⇒2420 = 2000(1 + 10/100)ⁿ

⇒2420/2000 = (11/10)ⁿ

⇒121/100 = (11/10)ⁿ

⇒(11/10)² = (11/10)ⁿ

⇒n = 2

∴ In 2 years rupees 2000 will amount to rupees 2420 at 10% per annum compound interest.

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