Question

In a college, number of boys is 75% of number of girls. Difference between boys and girls is 35. On a particular day 20% boys were absent, then find the number of boys those who present?
A) 72
B) 84
C) 93
D) 81

Answer 1

Hey mate ^_^

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Answer:
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Ratio of girls and boys

100% : 75% $= 4 : 3$

Difference is,

$1 unit = 35$

So,

$3 units = 35 × 3 = 105$

If 20% absent, that’s mean 80% present.

So,

Present boys

$= 80\% of \: 105$

$= \frac{80 \times 105}{100}$

$= 84$

Therefore,

Correct option B) 84

#Be Brainly❤️