Rajasthan Police Constable 7 Nov 2020 Shift 2

Question : 23 of 150

Marks: +1, -0

Out of the given three equations, the first two equations have been solved on the basis of a certain system. Solve the third equation following the same procedure.
\text"

3 ⧫\;\text "" "\;9 = \text"14 1 ⧫\;\text "" "\;7 = \text"4 a ⧫\;\text "" "\;b = ?

(ab - 1) / 2
(a - b) / 2
(ab - 1) / b
(ab + 1) / 2

Validate

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