Numerical - Calculate maximum percentage error, given two voltage measurements

Q.  If the two voltage measurements are V1 = 150 ± 2% and V2 = 100 ± 4% respectively. Then the maximum percentage error in the sum of two voltage measurements is
- Published on 16 Sep 15

a. ± 2.4 %
b. ± 2.6 %
c. ± 2.8 %
d. ± 3.4 %

ANSWER: ± 2.8 %

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