| A class of 50 girls and 70 boys sponsored a musical programme. If 40% of the girls and 50% of the boys attended, approximately what per cent attended? |
A) 48%
B) 42%
C) 44%
D) 46%
Correct Answer: D
Solution :
| Total number of students |
| \[50+70=120\] |
| Number of girls participated is 40%. |
| i.e. \[\frac{2}{5}\]of total girls \[=50\times \frac{2}{5}=20\] |
| Number of boys participated is 50%. |
| I.e. \[\frac{1}{2}\] of total boys \[=70\times \frac{1}{2}=35\] |
| Total participants \[=35+20=55\] |
| Percentage of participants \[=\frac{55}{120}\times 100=\frac{55}{6}\times 5\] |
| \[=\frac{275}{6}=45.8\]% \[\approx \]46% |
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