A physical quantity A is dependent on other four physical quantities p, q, r and s as given below
A = 
. The percentage error of measurement in p, q, r and s are 1%, 3%, 0.5% and 0.33% respectively, then what is the maximum percentage error in A?
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4
Sol. 
= 
= 2 + 1 + 1 = 4%
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