The percentage errors in the measurement of the length (L) and breadth (B) of a rectangle are 1% ...

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The percentage errors in the measurement of the length (L) and breadth (B) of a rectangle are 1% and b%, respectively. Then the percentage error in the calculation of the area will be
(a) (lb) %
(b) (1+b) %
(c) (L+l)(B+b)
(d) Lb+BL

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