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The percentage errors in quantities P, Q...

The percentage errors in quantities P, Q, R and S are 0.5%, 1%, 3% and 1.5% respectively in the measurement of a physical quantity `A=(P^(3)Q^(2))/(sqrtRS)`.
The maximum percentage error in the value of A will be :

A

`6.5%`

B

`7.5%`

C

`6.0 %`

D

`8.5%`

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