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Questions  

Subtract 0.2 kg from 32 kg. The result in terms of proper significant figures is 

a
31.8 kg
b
31.80 kg
c
32 kg
d
31 kg

detailed solution

Correct option is C

When subtracted we have to round off the result to least number of decimal places of the subtracted numbers. Here 32 has zero decimal places.32 - 0.2 = 31.8 kg round off to zero decimal places gives 32 kg

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