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The value of a machien being decreased i...

The value of a machien being decreased in `y` years at the rate of `r%` per year, becomes Rs. V. Find the value of the machine before `n` years.

Text Solution

Verified by Experts

Let the value of the machine before `n` years was Rs.`x`
As per questin `x(1-r/100)^(n)=V`
`impliesx=V((1-r/100)^(n))=V(1-r/100)^(-n)`
Hence before `n` years the value of the machine was Rs. `V(1-r/100)^(-n)`
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