Question

At the rate percent per and am will Rs.9000 amount Rs.18,000 in eight years

Answer 1

Amount =18000

Prinicipal =9000

So ,Simple interest =Amount-Prinicipal

=18000-9000

=9000

So , SI = PRT/100

9000=9000×R×8/100

So 9000 and 9000 is cancelled .

R=25/2% or 12.5% per annum.

Hope it will help you .

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Answer 2

Answer in attachment.

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