Question

Two numbers $a = 0.92$ and $b = 0.08$ are given . The number of significant figures present in the result after the following operation $a + b$, $a - b$, $a \times b$ and $a/b$, respectively, are

• A. $2$ , $2$ , $2$ , $2$
• B. $3$ , $3$ , $2$ , $2$
• C. $3$ , $2$ , $1$ , $1$
• D. $3$ , $2$ , $2$ , $2$

Answer 1

Answer: (C)

$a + b = 1.00;\, a - b = 0.84$
In case.of multiplication and division, result will contain least number of significant figures. In $0.08$, there is only one significant figure.