Question

44. In a school of 40 girls, the height of
20 girls is 4 feet 6 inch and the
height of remaining girls ia 5 let
Find the average height of all the
girls.
(A) 4ft.9 inch
(B) 4ft.7inch
(C) 5 ft.
(D) 4ft.8 inch​

Answer 1

4.6*20=92

20*5=100

192/40

4ft.8inch

Answer 2

Answer:

4.8 feet is the average height

Step-by-step explanation:

No. of girls in a school : 40

Height of 20 girls : 4.6 feet

Height of the remaining girls : 5 feet

Therefore,

The average height : ( 9.6/ 2 )feet = 4.8 feet