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The average weight of the students in fo...

The average weight of the students in four sections A , B ,C and D is 60 kg . The average weight of the students of A, B C and D individually are 45kg . 50 kg 72 kg and 80 kg , respectively . If the average weight of the students of section A and B together is 48 kg and that of B and C together is 60 kg , what is the ratio of the number of students in sections A and D ?

A

`12 : 7`

B

`4 : 3`

C

`3 : 2`

D

` 8 : 5`

Text Solution

Verified by Experts

The correct Answer is:
B
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