Question

The ratio of number of boys and girls is 4 : 3. If there are 18 girls in a class, find the number of boys in the class and the total number of students in the class.
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Answer 1

sᴏʟᴜᴛɪᴏɴ :

Number of girls in the class = 18

Ratio of boys and girls = 4 : 3

According to the question,

Boys/Girls = 4/5

Boys/18 = 4/5

Boys = (4 × 18)/3 = 24

Therefore, total number of students = 24 + 18 = 42.