The ratio of number of boys and girls is 4 3 If there are 18 girls in a class find the number of boy...........

Quantitative Aptitude ( CCS) Ratio, Proportion

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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Explanation:

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.

Hence, option 2 is the correct answer.