Question

The value of washing machine depreciates every year by 5% . If present value is 15000Rs. What was it's last year value?

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Answer 1

Answer:

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Answer 2

Explanation:

Let P be last year's value of machine ,A be the present year's value of machine,r be rate and n be time. .therefore A=P(1-r/100)^n .95000=P(1-5/100)^1. .95000=P*95/100. .95000*100/95=P. .1000*100=P. .P=100000