\((\frac{a}{b})x - 3 = (\frac{b}{a})(x - 5)\) হয় তবে x = কত ?

\((\frac{a}{b})x - 3 = (\frac{b}{a})(x - 5)\) হয় তবে x = কত ?

A 8

B 3

C 5

D 4

Solution

Correct Answer: Option D

\((\frac{a}{b})x - 3 = (\frac{b}{a})(x - 5)\)

বা, \((\frac{a}{b})x - 3 = (\frac{a}{b}) - (x - 5)\)

বা, x - 3 = -x +5

বা, 2x = 8 x = 4