A car travels at a constant speed. It covers 2/5 of a journey in 2 hours. How long will it take to cover the remaining journey?
Show answer & explanation
Correct answer: D
Explanation
Portion of the journey covered in 2 hours = 2/5
Total journey = 1
Remaining journey = 1 − 2/5 = 3/5
Time taken to cover 2/5 of the distance = 2 hours
Time required for the full distance (1 unit) = 2 ÷ (2/5) = 2 × 5/2 = 5 hours
Now, time required for the remaining 3/5 of the distance = 5 × 3/5 = 3 hours