Question

If $x=(a-b)$, the maximum percentage error in the measurement of $x$ will be

(a) $\left[\frac{\Delta a}{a-b}-\frac{\Delta b}{a-b}\right] \times 100$

(b) $\left[\frac{\Delta a}{a-b}+\frac{\Delta b}{a-b}\right] \times 100$

(c) $\left[\frac{\Delta a}{a}+\frac{\Delta b}{b}\right] \times 100$

(d) $\left[\frac{\Delta a}{a}-\frac{\Delta b}{b}\right] \times 100$

Answer 1

ANSWER : The maximum percentage error in the measurement of $x$ will be $\left[\frac{\Delta a}{a-b}+\frac{\Delta b}{a-b}\right] \times 100$.

So, The correct option of this question is (B).