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A physical quantity X is related to four...

A physical quantity X is related to four measurable quantities a, b, c and d as follows.
`X = a^2 b^3 c^(5//2) d^-2` The percentage error in the measurement of a,b,c and d are 1%,2%, 3% and 4%, respectively. What is the perecentage error in quantity X? If the value of X calculated on the bais of the above relation is 2.7 63, to what value should you round off the result?

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