Solve this :
(23.6% of 1254) - (16.6% of 834) = ?

A. 153.5

B. 155.5

C. 157.5

D. 159.5

E. None of these

Answer: Option C

Solution(By Examveda Team)

$$\left( {23.6\% {\text{ of 1254}}} \right) - \left( {16.6\% {\text{ of 834}}} \right)$$
$$ = \left( {\frac{{236}}{{10}} \times \frac{1}{{100}} \times 1254} \right) - $$     $$\left( {\frac{{166}}{{10}} \times \frac{1}{{100}} \times 834} \right)$$
$$\eqalign{ & = \frac{1}{{1000}}\left( {236 \times 1254 - 166 \times 834} \right) \cr & = \frac{{12}}{{1000}}\left( {24662 - 11537} \right) \cr & = \left( {\frac{{12 \times 13125}}{{1000}}} \right) \cr & = 157.5 \cr} $$