A physical quantity \rho is related to four variables α,β,γ and η as
ρ=α3β2ηγ
The percentage errors of measurements in α,β,γ and η are 1%, 3%, 4% and 2%, respectively. Find the percentage error in ρ.
13%
11%
9%
15%
% error in ρ=3(% error in α)+2(% error in β)+12(% error in γ)+(% error in η)
= 13 %