Question: 
১৮. The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in class is 5.5 ft, what could be the possible strength of boys and girls respectively in the class.
30, 20
50, 20
20, 30
Answer: 
50, 20
Last Updated: 
10/11/2021 - 17:00