Question

11. A car completed a journey
ar completed a journey in 14 hours. If two-fifths of the journey is covered at a
d of 52 km/hr and the remaining at a speed of 62 km/hr, find the total length of the journey ​

Answer 1

THE CORRECT QUESTION:

A car completes a journey in 11 hours, the first half at 30 km/hr and the second half at 25 km/hr. What is the distance travelled?

Let the total distance be 2d km.

Now, since first half of journey is done at 30 km/h and the second half of journey is done at 25 km/h, the total time taken is:

d/30 + d/25 = 11 hours ( given total journey time is 11 hour)

==> 11d / 150 = 11; ==> d = 150 km or Total distance travelled= 2 × 150 = 300 km.

Answer 2

Answer:

distance=speed×time

:52×7=364

62×7=434

364+434=798 km total distance covered