Mathematics
Grade6
Easy

Question

If 60% of the students in a school are boys and the number girls 972, Find the number of boys are there in the school.

  1. 80%    
  2. 70%    
  3. 30%    
  4. 20%    

hintHint:

First, we calculate total number of students by using the number of girls. Then, we use-- #Boys + #Girls = #Students to calculate the number of boys in the school.

The correct answer is: 30%


    Step 1 of 2:
    Let’s say total number of Students in school is p.
    Now,  given that 60% of the students in a school are boys.
    Therefore, (100-60)% = 40% of the students are girls.
    And given that the number of girls is 972.
    So, 40% of p = 972
    → 0.4 × p = 972
    → p = fraction numerator 972 over denominator 0.4 end fraction = 2430

    Hence, total number of students is 2430.
    Step 2 of 2:
    #Boys + #Girls = #Students
    → #Boys = 2430 - 972 = 1458
    Final Answer:
    The number of boys in the school is-- 1458.

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