Postal or Sorting Assistants Model Paper 7 With Solutions

Question : 21 of 100

Marks: +1, -0

The sum of the number of boys and girls in a school is 150. If the number of boys is x, then the number of girls becomes x% of the total number of students. How many boys are there in the school ?

Validate

Solution:

150-x=x/100×150={3x}/2

⇒

{5x}/2=150

⇒ x

={150×2}/5=60

Number of boys is 60

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