Question

Rs.8000 amount to Rs. 10,000 in four year simple interest. What is the rate of interest​

Answer 1

Answer:

Principal = Rs. 8000

Amount = Rs. 8000

Amount = P+SI

8000 = 10000+SI

8000-10000 = SI

Rs. 2000 = SI

SI = P×R×T/100

2000 = 10000×R×4/100

2000 = 400×R

2000/400 = R

5% = Rate

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Answer 2

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Answer is in image.

Formulas Used:

$\sf{Amount(A)\:=\: Principal(P)\:+\: Interest(I)}$

$\sf{Interest(I)\:=\: \dfrac{P\times R\times T}{100}}$

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