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primary 6 | Maths
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Venessa
Venessa

primary 6 chevron_right Maths

Speed,Distance and Time question...please help

Date Posted: 2 years ago
Views: 146

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Lionel Loi
Lionel Loi's answer
107 answers (Tutor Details)
1st
Assume distance to be d

Find out how much ahead the coach is before the car starts moving @ 0718 = d/10

Compare the difference of speed between the car and coach.

d/4 - d/5 = d/20

Hence the car will catch up at d/20 per hour, so it will take 2 hours to catch up d/10 = 2d/20.

Therefore two hours after the car starts at 0718 means the answer is 0918
Venessa
Venessa
2 years ago
Thank you so much
Venessa
Venessa
2 years ago
Hi Lionel Loi!Thank you so much for the help!The working was so clear and I finally knew how to do the question!:)
XOXO,
Venessa
Lionel Loi
Lionel Loi
2 years ago
No problem ☺