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Q.

The sum of the numbers 436.32, 227.2 and 0.301 in appropriate significant figures is

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a

663.8

b

664

c

663.82

d

663.821

answer is B.

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Detailed Solution

The sum of the numbers can be calculated as 663.821 arithmetically. The number with least decimal places is 227.2 is correct to only one decimal place.

The final result should, therefore be rounded off to one decimal place i.e, 664.

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