Subject :IMO Class : Class 6
The sum of four girls is 57 years and their ages are in the proportion 3 : 4 : 5 : 7. The difference between the age of eldest and youngest girl is _____.
(A) 8 years
(B) 10 years
(C) 12 years
(D) 15 years
Ans 1:
Class : Class 6
12 years
Ans 2:
Class : Class 6
12 years