1)

In a PSC examination there were 2500 candidates, Of them, 20% are girls and the rest boys. Suppose 5% of boys and 40% of girls failed. The percentage of candidates who passed was


A) 64%

B) 85%

C) 74%

D) 88%

E) 82%

Answer:

Option D

Explanation:

No. of girls $= \frac{\left( 2500 \times 20 \right)}{100}$ $= 500$.

No of biys $= 2500 - 500 = 2000$.

No. of boys who passed $= \frac{\left( 2000 \times 95 \right)}{100}$ $= 1900$.

No. of girls who passed $=\frac{\left(500\times 60\right)}{100}$ $= 300$.

Total candidates passed $= 1900 + 300 = 2200$.

% of passed candidates $=\left(\frac{2200}{2500}\right) \times 100$ = 88%