A car takes 6 hours to cover a distance of 540 Km. how much should the speed in Kmph be maintained to cover the same direction in 3/2th of the previous time?
A). 6o Kmph
B). 62 Kmph
C). 75 Kmph
D). 77 Kmph
Solution:
Given: Distance, d1 = 540 Km
Time, t1 = 6 hr
Speed1 = d1/t1
= 540/6 = 90 Kmph
Next, Distance, d2 = 540 Km
Time, t2 = (3/2) of 6 hr = 9 hr
Speed2 = d2/t2
= 540/9 = 60 Kmph
So, the correct option is A). 60 Kmph