An athlete runs 1 mile along a normal 400m athletic track and finishes exactly on the finish line. where did he start from? ( 1 mile=1.609km)

He started 9 meters before the start/finish line

Step-by-step explanation:

1mile = 1.609 km

1.609 km * 1000meter/1km = 1609 meters

He ran 1609 meters

each lap is 400 meters

he ran 4 laps

4*400 = 1600

1609-1600 = 9 meters

He started 9 meters before the start/finish line

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

77

step-by-step explanation: