A racing car has to complete 10 laps.
It has to complete all the 10 laps in less than 10 minutes.
It completes the 1st lap in 1 minute 25 seconds at a maximum speed of 30mph.
What time does he have to complete the second lap to remain on target to finish in the set time?
2007-01-09 05:31:59 · 4 answers · asked by spidermike 2 in Education & Reference ➔ Trivia
57 Seconds, If the driver keeps this pace for the remaining 9 laps he finishes in time.
The math is just 10 minutes - 1min25sec so there's 8min35sec left. Divide 8min35sec by the 9 remaining laps and the goal per lap becomes 57sec.
2007-01-09 08:25:04 · answer #1 · answered by Jeremy C 1 · 0⤊ 0⤋
Lap 1 = 1 minute 25 seconds. This leaves 8 minutes and 35 seconds to complete the remaining 9 laps. 8 minutes and 35 seconds is equal to 515 seconds. Divide 515 seconds by 9 laps so the driver would need to maintain 57 seconds per lap to finish all 10 laps in less than 10 minutes.
2007-01-09 16:11:28 · answer #2 · answered by Outdoorsman 3 · 0⤊ 0⤋
34 secs for the second lap and the rest can be run in 1 minute each ... this ends in 9 minutes 59 seconds (under 10 minutes).
2007-01-09 14:41:04 · answer #3 · answered by icehoundxx 6 · 0⤊ 0⤋
34 secs, 1 min for all other laps.
2007-01-09 13:36:51 · answer #4 · answered by Anonymous · 0⤊ 0⤋