In a primary school the average weight of male students is 65.9 kg and the average weight of female students is 57 kg. If the average weight of all the students (both male and female) is 60.3 kg and the number of male students in the school is 66, what is the number of female students in the students?

(a) 162 (b) 168 (c) 180 (d) 112

In a primary school the average weight of male students is 65.9 kg and the average weight of female students is 57 kg. If the average weight of all the students (both male and female) is 60.3 kg and the number of male students in the school is 66, what is the number of female students in the students?

(a) 162 (b) 168 (c) 180 (d) 112

1 Answer

127 votes

Let the number of female students be

Let weight of female students =

Number of male students = 66.

Total weight of male students =

Average weight of all the students = 60.3 kg.

Total weight of all the students =

According to information. Then,

127 votes

127