Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Secondary 1 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Only the second part
Date Posted: 4 years ago
Views: 201
Answer 1 is 240s
Meaning 240s is 1 laps ahead.
5 laps ahead = 5 × 240 = 1200s
= 1200÷60
= 20 minutes.
Hope this helps
Meaning 240s is 1 laps ahead.
5 laps ahead = 5 × 240 = 1200s
= 1200÷60
= 20 minutes.
Hope this helps
May I know why 240 seconds is 1 lap ahead? I thought it’s the time taken for both cars to reach the start?
Car X use 60s to finish 1 laps
Car Y use 80s to finish 1 laps
When car X finish 1 laps, car Y still behind car X.
When they meet again at start point will be 240s (common multiple of 60 and 80).
Mean car X already 4 laps
And car Y only 3 laps.
So, car X already 1 laps ahead.
.....
.....
Car Y use 80s to finish 1 laps
When car X finish 1 laps, car Y still behind car X.
When they meet again at start point will be 240s (common multiple of 60 and 80).
Mean car X already 4 laps
And car Y only 3 laps.
So, car X already 1 laps ahead.
.....
.....
Oooooo tysm:)
See 1 Answer
Answer 1 is 240s
Meaning 240s is 1 laps ahead.
5 laps ahead = 5 × 240 = 1200s
= 1200÷60
= 20 minutes.
Hope this helps
Meaning 240s is 1 laps ahead.
5 laps ahead = 5 × 240 = 1200s
= 1200÷60
= 20 minutes.
Hope this helps
360 Tutoring Program