Question

Rs 9000 becomes Rs 18000 at simple interests in 8 years. Find the rate percent per annum ​

Answer 1

Answer:

THE ANSWER IS 12.5%

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Answer 2

$\huge{\text{\underline{Correct\:Question:-}}}$

Rs 9000 becomes Rs18000 at simple intrest in 8 years.Find the rate percent per annum.

$\huge{\text{\underline{Solution:-}}}$

★ Given:-

• Amount = 18000
• Principal = 9000

★ Using formula:-

Simple Interest = Amount - Principal

= 18000 - 9000

$\implies\boxed{\text{9000}}$

So,

Simple interest = PRT / 100

9000 = 9000 × R × 8 / 100

★ Point to remember:-

By cancelling 9000 on both sides, we get,

R = 25/2 %

R = 12.5 % per annum

Therefore the rate percent per annum is 12.5%

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