Q.

In the final answer of the expression (29.2−20.2)1.79×1051.37 the number of significant figures is

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a

1

b

2

c

3

d

4

answer is C.

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Detailed Solution

The number of significant figures in the final answer of an expression is equal to the minimum number of significant figures in the numbers in the expression. Since all the numbers in the expression have 3 significant digits, the answer must also contain 3 significant digits.
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