Discussion of Question with ID = 095 under Distance-and-Time

This is the discussion forum for this question. If you find any mistakes in the solution, or if you have a better solution, then this is the right place to discuss. A healthy discussion helps all of us, so you are requested to be polite and soft, even if you disagree with the views of others. The question and its current solution has also been given on this page.

Advertisement

Question

A vehicle travels 50% of its distance at 2 km/h, and the remaining 50% at 8 km/h. What is the total distance, if it travelled for a total duration of 20 hours?

A

64 km.

B

65 km.

C

63 km.

D

66 km.

Soln.
Ans: a

Let 2x be the actual duration of the journey. Then, $x/2 + x/8 = 20$. Solving for x we get x = 32, and so, 2x = 64 km.


Comments and Discussion