Question

Taking into account of the significant figures, what is the value of $9.99m-0.0099m$ ?

• A. 9.9801 m
• B. 9.98 m
• C. 9.980 m
• D. 9.9 m

Answer 1

Answer: (B)

$9.99m-0.0099m=9.9801m$
But our answer, Should have same no. of significant figures, as the least accurate number.
$\therefore$ Ans $=9.98m$.