engineering recuitment GATE EE 2023-24 Test Series General Aptitude Numerical Ability Numerical Estimation
If a, b, c are in geometric progression with common ratio 2 \(\left( i.e~\frac{b}{a}=\frac{c}{b}=2 \right)\) then \(\frac{a-b}{b-c}\) is equal to ______
1
1/2a
2
2a
3
1/2
4
2