Quantitative Aptitude – Equation – If a,b,c are non-zero and 14


Slot – 3 – Quantitative Aptitude – Equation – If a,b,c are non-zero and 14


Q. If a,b,c are non-zero and 14^a=36^b=84^c, then 6b(1/c-1/a) is equal to?
Answer: 3

Solution:
Given , 14^a=36^b=84^c
Or 2^a*7^a =2^2b*3^2b =7^c*2^2c*3^c
On comparing , a = 2c = 2b
So 6b (1/c-1/a)= 6b (1/b-1/2b)= 3


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