Question

Present average of age of A and B is (9x-15) years. Present average age of A, B and C is (6x+5) years. If present age of B is 20% less than the present age of C and 25% more than the present age of A, then find the present age of
A.

A 25 years
B 28.8 years
C 19.2 years
D 22.4 years
E None of these
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