Travelling at 60 km/h, a person reaches his destination in a certain time. He covers 60% of his journey in 2/5th of the time. At what speed (in km/h) should he travel to cover the remaining journey so that he reaches the destination right on time?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 40.
60% of the journey is covered in 2/5 times.
Rest 40% journey is to be covered in 3/5 time, if he has to be right on time.
Time ratio = 2 : 3
60 × 2 = x × 3
x = (60 × 2)/3
x = 40 km/hr