In a kilometre race, A can give B a start of 100 m or 15 seconds.

In a kilometre race, A can give B a start of 100 m or 15 seconds. How long does A take to complete the race?

Quiz

Answer/Solution

2min 30 sec

Steps/Work

100 m = 15 sec
1 m = 15/100 sec
1000 m = 15/100*1000
=150 sec
=2min 30 sec
ANSWER:B