Question

Question 15
Delhi metro covers a distance in 40 minutes, if it runs at a speed of 48 kmph on an average. Find the speed
at which the train must run to reduce the time of journey to 32 minutes:​

Answer 1

Answer:

Step-by-step explanation:I don't know

Answer 2

Answer:

make it as brain list

Step-by-step explanation:

Given, Time = 40/60 hr

                      = 2/3 hr

Given, Speed = 45 kmph

So, Distance = speed/Time

                       =  45 * 2/3

                       = 30 km

Given, Time of journey  = 30 mins

  

                                         = 30/60

                                          = 1/2 hr

So, Speed = Distance/Time

                   = 30 * 1/2

                   = 15kmph.