Question

In a class, the ratio of the number of boys and girls is 9:5. Find the number of boys if the
total number of students in the class is 42.​

Answer 1

Step-by-step explanation:

9x+5x=42

14x=42

x=42/14

x= 3

number of boys:-3*9=27

number of girls:-3*5=15

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Answer 2

Answer:

GIVEN:

Ratio of the number of boys and girls is 9 : 5.

Total number of students in the class is 42.

Solution:

Let the number of boys be 9x and

Let the number of girls be 5x.

ATQ,

9x + 5x = 42

=> 14x = 42

=> x = 42/14 = 3

No. of girls = 5x = 5 × 13

= 65

No. of boys = 9x = 9 × 3

= 27

Hence, the total of boys in the class is 27.