Question

a policeman follows a thief who is 800m ahead of him . If they run at speed of 8 km / hr and 7 km/ hr . how long will the policemen take to catch the thief​

Answer 1

Answer:

             48 minutes

Step-by-step explanation:

                                            their relative speed  = 8 - 7 = 1km/hr

                                           800m = 800/1000 = 4/5 km

time police man will take to catch the thief = distance/relative speed = 4/5 /1

                                   = 4/5 hr

                                   = 4/5 *60

                                   = 48 minutes Answer

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