Question

In a class, the girls are 60% of the total number of students and the boys are 18 in
number. How many students are there in the class?
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Answer 1

Step-by-step explanation:

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Answer 2

AnsWer :

• We are given that , percentage of students that are girls in the class is 60%.
• Therefore, percentage of students that are boys in the class is 100 - 60 = 40%.
• And we are also given that, the number of boys in the class is 18.
• Let us assume that the total number of students in the class is m.

★ According to the Question now ★

→ 40% × m = 18

→ (40/100) × m = 18

→ (4/10) × m = 18

→ 4m/10 = 18

→ 4m = 18 × 10

→ 4m = 180

→ m = 180 ÷ 4

→ m = 45

• Hence,the total number of students in the class is 45.

★ Now, let's find the number of girls in the class :

→ Number of girls in the class = total number of students in the class - Number of boys in the class

→ Number of girls in the class = 45 - 18

→ Number of girls in the class = 27

• Hence,number of girls in the class is 27.