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There are 18 girls in a class of 42 students. In the class, what is the percentage of boys out of total students? (Nearest integer value)

A. 43%

B. 53%

C. 57%

D. 59%


1. C
2. B
3. A
4. D

1 Answer

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Best answer
Correct Answer - Option 1 : C

Given:

Total students in the class is 42

Total number girls in the class is 18

Formula used:

Percentage= (Given value/Total value) × 100

Calculations:

According to the question, we have

The number of boys is 

Number of boys = Total number of students - Total number of girls

⇒ Number of boys = 42 - 18

⇒ Number of boys = 24

The percentage of boys in the class is 

Percentage of boys = (Number of boys/Total number of students) × 100

⇒ Percentage of boys = (24/42) × 100

⇒ Percentage of boys = 57.14% = 57%

∴ The percentage of boys out of total students in the class is 57%.

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