If a person travels at a speed of 40 km h he will reach his destination on time He covered half the ...........

Quantitative Aptitiude (CLAT) Time & distance

If a person travels at a speed of 40 km/h he will reach his destination on time. He covered half the journey in -2 of the time. At what speed (in km/h) should he 3 travel to cover the remaining journey to reach the destination on time?

Explanation:

Let the person takes 3th to reach his distination with a speed of 40km/hr.
Distance Travelled = 40 x 3 = 120 km/hr.
Now distance travelled in 2/3 (3t)h = 60 t
Distance travelled in t hrs finally
= 120t - 60t = 60t km.
Speed = Distance/ Time = 60t /t = 60 km/hr.