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Questions  

If X = a + b, the maximum percentage error in the measurement of X will be

a
Δaa+Δbb×100%
b
Δaa+b−Δba+b×100%
c
Δaa+b+Δba+b×100%
d
Δaa×Δbb×100%

detailed solution

Correct option is C

X=a+b⇒ΔX=Δa+Δb Now  ΔXX×100=(Δa+Δb)a+b×100 =Δaa+b+Δba+b×100

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