Mixtures and Alligations Doubts
2
Posts
2
Users
0
Likes
969
Views
Topic starter
In a pre-primary school, the average weight of boys in a class is 30 kg and the average weight of girls in the same class is 20kg. If the average weight of the whole class is 23.25 kg, what could be the possible strength of boys and girls respectively in the same class?
a) 13 and 17
b) 18 and 19
c) 13 and 27
d) 16 and 14
e) 15 and 12
Posted : 03/04/2021 5:50 pm
Posted : 20/04/2021 6:49 pm
