Question

Calculate the value of the following expression by appropriate rounding off of the numbers:
$0.43\times 0.87=$

• A. $0.31$
• B. $0.35$
• C. $0.36$
• D. $0.38$

Answer 1

The correct option is C $0.36$

Since in the case of $0.43$, the last digit is less than $5$, it would be rounded off to $0.4$

Likewise, since the last digit of $0.87$ is greater than $5$, it would be rounded off to $0.9$

$0.43\times 0.87$ thus becomes $0.4\times 0.9=0.36$