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A Physical quantity P is related to four...

A Physical quantity P is related to four observables a,b,c and d as follows:
`P=(a^3b^2)/(sqrtc d)`
The percentage errors of measurement in a,b,c and d are `1%`,`3%`,`4%` and `2%` respectively. What is the percentage error in the quantity P? If the value of P calculated using the above relation turns out to be `3.763`, to what value should you round off the result?

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