Question

The average score of 35 girls is 80 and the average score of 25 boys is 68. Find the average score of boys and girls together

Answer 1

average score of 35 girls = 80

Find total score of 35 girls :
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= 35 × 80 = 2800

average score of 25 boys = 68

Find total score of 25 boys :
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= 25 × 68 = 1700

Find total score of boys and girls :
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2800 + 1700 = 4500

total number of boys and girls

= 35 + 25 = 60

average score of boys and girls together

= total score / total boys and girls

= 4500 / 60 = 75

therefore ,average score of 35 girls and 25 boys together = 75

Answer : average score = 75

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