A Can Run 220 Metres In 41 Seconds And B In 44 Seconds. By How Many S

1.	A Can Run 220 Metres In 41 Seconds And B In 44 Seconds. By How Many Seconds Will B Win If He Has 30 Metres Start?
Answer» B has a start of 30 metre => A has to run 220 metre and B has to run (220-30)=190 metre Given that A TAKES 41 SECONDS to cover this 220 metre B takes 44 seconds to cover 220 metre => B takes 44220 seconds to cover 1 metre => B takes 44/220×190=420×190 = 38 seconds to cover 190 metre => B takes 44/220 seconds to cover 1 metre => B takes 44/220×190=4/20×190 = 38 seconds to cover 190 metre i.e., A beats B by (41-38)= 3 seconds. B has a start of 30 metre => A has to run 220 metre and B has to run (220-30)=190 metre Given that A takes 41 seconds to cover this 220 metre B takes 44 seconds to cover 220 metre => B takes 44220 seconds to cover 1 metre => B takes 44/220×190=420×190 = 38 seconds to cover 190 metre => B takes 44/220 seconds to cover 1 metre => B takes 44/220×190=4/20×190 = 38 seconds to cover 190 metre i.e., A beats B by (41-38)= 3 seconds.

A Can Run 220 Metres In 41 Seconds And B In 44 Seconds. By How Many Seconds Will B Win If He Has 30 Metres Start?

Answer»

B has a start of 30 metre

=> A has to run 220 metre and B has to run (220-30)=190 metre

Given that A TAKES 41 SECONDS to cover this 220 metre

B takes 44 seconds to cover 220 metre

=> B takes 44220 seconds to cover 1 metre

=> B takes 44/220×190=420×190 = 38 seconds to cover 190 metre

=> B takes 44/220 seconds to cover 1 metre

=> B takes 44/220×190=4/20×190 = 38 seconds to cover 190 metre

i.e., A beats B by (41-38)= 3 seconds.