Question

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

• A. $663.821$
• B. $664$
• C. $663.8$
• D. $663.82$

Answer 1

Answer: (B)

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., $664.$