A person travels equal distances with speeds of 2 km/hr, 3 km/hr & 4 km./hr takes a total time of 65 minutes. The total distance (in km) is :

Let us assume total distances is ‘3x’  (Because ‘3’ times he travelled)

Given, $\frac{x}{2}+\frac{x}{3}+\frac{x}{4}=\frac{65}{60}$

$6x+4x+3x=\frac{65\times 12}{60}$

$13x=13$

$\therefore Total\text{\hspace{0.17em}\hspace{0.17em}distance\hspace{0.17em}\hspace{0.17em}}is3x=3\times 1=3kms$