Question

The mean of $15$ observations is $32$. Find the resulting mean. if each observation is increased by $60\%$

• A. $51.2$
• B. None of these
• C. $61.2$
• D. $50.2$

Answer 1

Answer: (A)

$\Rightarrow$ Mean of the data$=32$

$\Rightarrow$ If every observation is increased by $60\%$ then mean also increases by $60\%$

$\Rightarrow$ The required mean $=\frac{60}{100}\times 32+32$

$=19.2+32$

$=51.2$