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A physical quantity z depends on four ob...

A physical quantity z depends on four observables a, b, c and d, as `z = (a^2b^(2/3))/(sqrtc d^3)`. The percentages of error in the measurement of a, b, c and d are 2%, 1.5%, 4% and 2.5% respectively. The percentage of error in z is :

A

0.1225

B

0.165

C

0.135

D

0.145

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