Question

The speed of a train is 60kmph. The driver exceeds the speed of train by 12kmph. What is the percentage gain in speed of train ????​

Answer 1

Answer:

Speed was initially 60kmph, now its 72 kmph -> increased by 12kmph

Now percent increase of speed ==> how much percent is 12 out of 60

==> 60*x/100 = 12 ==> x = 120/6 = 20

Therefore 20% increase in speed.

Answer 2

Answer:12/60×100=20%

Step-by-step explanation: Initial speed =60kmph

Gain in speed = 12 kmph

Gain percentage= 12/60×100=20%