Question

The average age of 12 boys is 17 years and of 15 girls is 16 years. What is the average age of all boys and girls?​

Answer 1

Answer:

average age of 12 boys=17

average age of 15 girls=16

average age of all=(17+16)/(12+15)

average age of all=33/17

average age of all=1.9 years ans

Answer 2

Explanation:

Total age of boys= 12×17= 204

Total age of girls=15×16=240

Total age of boys and girls=204+240= 444

Total boys and girls= 12+15= 27

Average age= 444÷27= 16.4444