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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

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

Date Posted:
3 years ago

Thank you so much

XOXO,

Venessa

No problem ☺