SSC CGL 2023 PYQ — Question 15

The correct answer is option 1 i.e. 432.

Given that

One-third of the distance is traveled at 30 kmph and two-thirds is travelled at 40 kmph

Let the total distance be D

Distance D is traveled in 12 hours 

Let it cover one-third of the distance in T hours and rest in 12 -T hours

Formula used 

Speed = $\frac{distance}{time}$

According to the question 

30 = $\frac{D/3}{T}$

And, 40 = $\frac{2D/3}{12 - T}$

Solving for D we get 

D = 432 km

Hence, the total distance (in km) of the journey is 432 km.