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

The correct option is C $663.8$

436.32 + 227.2 + 0.301 = 663.821

The final answer must contain the same no of digits after the decimal as the number with the least no of digits after the decimal among those we added (227.2).

So, the answer should be 663.8