December 27, 2024
Explanation:
(30)
Let the distance between his home and office is ‘d’ km
Usual time taken = d 12 km
New time taken = d 20 km
As per the question, difference between these two times is I hour.
d/12 − d/20 = 1
d (5−3/60) =1
d = 60/2 = 30 km