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Q.

The area of a rectangular field (in m2) of length 55.3 m and breadth 25 m after rounding off the value for correct significant digits is :

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a

1382

b

14×102

c

138×101

d

1382.5

answer is C.

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Detailed Solution

 Area =55.3×25=1382=14×102m2

as minimum significant figure is 2 it is rounded off two significant figure

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