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:

12

Step-by-step explanation:

Given,

The average score of 10 girls is 15

Therefore,The total score of 10 girls=10×15=150

Again,The average score of 15 boys is 10

So,The total score of 15 boys =15×10=150

The total marks of 10 girls and 15 boys=150+150=300

And the number of boys and girls=15+10=25

Therefore, Average score of the class in the test

=300÷25

=12

(Ans.)