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  4. The area of a rectangular field (in m 2 ) of lengt 55.3 m and breadth 25 m after rounding off the value for correct significant digits is :

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Q. The area of a rectangular field (in $m ^{2}$ ) of lengt $55.3 \,m$ and breadth $25\, m$ after rounding off the value for correct significant digits is :

NEETNEET 2022Physical World, Units and Measurements

Solution:

Area $=$ Length $\times $ Breadth
$=55.3 \times 25 $
$=1382.5$
$=14 \times 10^{2}$
Resultant should have $2$ significant figures.