Question

1 8 1 7 hours to cover a certain distance at the speed of 48 km per hour if the speed is decreased by 20 km per hour how much time will it take to cover the same distance

Answer 1

Answer:

12 Hours

Step-by-step explanation:

Let the distance it travelled be = x km

                              Time taken = 7 hours

                                     Speed = 48 km/h

We know that Distance =Speed × Time

                     x = 48×7

                        =336km

Now, decreased speed = 48-20

                                       =28km/h

                    distance = 336km

                     time=  Distance/Speed

                            =336/28

                            =12 hours

  ∴ It takes 12 hours to cover the same distance