Question

In a Maths test the average score of the 10 girls in a class is 15 and the average score of the 15 boys is 10. The average score of the class in the test is​

Answer 1

Answer:

sum of marks of 10 girls=150

sum of marks of 15 boys=150

total marks =300

total students=25

average marks of class =300/25=12

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