In a college, 20% of the number of boys are equal to the three-fourth of the number of girls.
In a college, 20% of the number of boys are equal to the three-fourth of the number of girls. What is the ratio of boys and girls in that college ?
एक कॉलेज में, लड़कों की संख्या का 20% लड़कियों की संख्या के तीन – चौथाई के बराबर है। उस कॉलेज के लड़को और लड़कियों का अनुपात ज्ञात कीजिए।
Detailed Solution & Logic
Correct Answer:
15 : 4
Let the number of boys be $B$ and girls be $G$.
$20% \text{ of } B = \frac{3}{4}G$
$\frac{20}{100}B = \frac{3}{4}G$
$\frac{1}{5}B = \frac{3}{4}G$
Cross-multiply:
$4B = 15G$
$\frac{B}{G} = \frac{15}{4}$
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