Question
The average marks scored by 20 boys and 45 girls are 88
and 94 respectively. Find the average marks scored by all the students together. (Answer should be rounded off to the nearest integer)Solution
ATQ, Required average = (20 X 88 + 45 X 94) ÷ (20 + 45) = (1,760 + 4,230) ÷ 65 = (5,990 / 65) ≈ 92
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