In a class of 45 students there are 20 girls who scored an average of 42 marks in a test of 50 marks...........

Quantitative Aptitude (CHSL) Average

In a class of 45 students, there are 20 girls who scored an average of 42 marks in a test of 50 marks. If the class average is 36,

what are the average marks of the boys?

This questions was previously asked in

SSC CHSL 27th May 2022 Shift-1

32.50

32.10

30.80

31.20

- The class has 45 students: 20 girls and 25 boys.

- Girls' average is 42 out of 50 marks.

- Total marks for girls: 20 × 42 = 840.

- Class average is 36, so total marks for the class: 45 × 36 = 1,620.

- Total marks for boys: 1,620 - 840 = 780.

- Boys' average: 780 ÷ 25 = 31.20.

?? Answer Option 4: 31.20 is correct.

If your choice was Option 4:

- .

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