Time & Distance
Ravi takes 20 seconds to reach a distance of 180 m from him when he increased his speed by 50%. Then if he travels at the original speed how much time will he take?
|E||None of these|
Let his initial speed = x
After increasing 50% his speed will 1.5 x = 9/1.5 = 6 m/s
So, time taken = 180/6 = 30 sec