Question

There are 30 boys and 40 girls in a class. If the
average age of boys is 10 years and average age of
girls is 8 years then the average age of the whole
class is:
(a) 8 yr
(b) 8.86 yr
(c) 8.2 yr
(d) 9 yr​

Answer 1

Answer:

option d

Step-by-step explanation:

9 yr

as 10 + 8/2 =9

hope it will help you