Question

res
9. At what rate per cent per annum will * 6,000
amount to * 6,615 in 2 years when interest
is compounded annually ?​

Answer 1

Answer:

5%

As it is given that the principle amount is Rs 6000, time is 2 years and Total amount is Rs 6615. Therefore, the rate of interest at which Rs 6000 will amount to Rs 6615 in 2 years is 5%.

Explanation:

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Answer 2

Answer:

CorrectQuesTion:

At what rate percent per annum will Rs.6000 amount to Rs.6615 in 2 years when interest is compounded annually.

Given

Principal=Rs.6000

Amount=Rs.6615

Time (n)=2 years

Find:RateofInterest:

Using formula to calculate rate

A=P(1+ 100

n

⟹6615=6000(1+r/100)²

⟹6615=6000(100+r/100)²

⟹6615/6000=(100+r/100)²

⟹√6615/6000=100+r/100

⟹81.33/77.45=100+r/100

⟹7745+77.45r=8133

⟹77.45r=8133-7745

⟹77.45r=388

⟹r=5.0%

Hence,

{The\:rate\:of\: Interest=5.0\%}}