The average age of group of 20 girls is 15 years and that ofanother group of 25 boys it is 24 years. The average age of the two groups mixed together is :

The average age of group of 20 girls is 15 years and that ofanother gr

1.	The average age of group of 20 girls is 15 years and that ofanother group of 25 boys it is 24 years. The average age of the two groups mixed together is :
A.	9.5 yearas
B.	0 years
C.	1 yearas
D.	1.5 years
Answer» C. 1 yearas

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The average age of group of 20 girls is 15 years and that ofanother group of 25 boys it is 24 years. The average age of the two groups mixed together is :

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