Question

Solve : $0.25+\frac{1.95}{x}=\mathrm{0.9.}$

Answer 1

$0.25+\frac{1.95}{x}=\mathrm{0.9.}0.25x+1.95=0.9x\Rightarrow 0.9x-0.25x=1.95\Rightarrow 0.65x=1.95\Rightarrow x=\frac{1.95}{0.65}=3\text{Hence, x = 3}$