AC Lim's answer to Rianna's Primary 6 Maths Speed Singapore question.
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Hope this help
Date Posted:
5 years ago
Good evening Mr Lim, I'm confused on how Am = XM and how do you get 3600? Please clarify my doubts thank you! ^^
Is time for:
cyclist from A to M(AM) = time for motorist from X to M (XM) is point they met.
Cause cyclist at A when motorist starts the journey. Mean motorist start late 4 hours when cyclist already reached A (120km from X)
M is midpoint between Z and Y
Distance X to M = distance M to Y.
Distance X to M is 120 + 60 = 180
Distance X to Y = 180 (X to M) + 180 (M to Y)
=360 km
cyclist from A to M(AM) = time for motorist from X to M (XM) is point they met.
Cause cyclist at A when motorist starts the journey. Mean motorist start late 4 hours when cyclist already reached A (120km from X)
M is midpoint between Z and Y
Distance X to M = distance M to Y.
Distance X to M is 120 + 60 = 180
Distance X to Y = 180 (X to M) + 180 (M to Y)
=360 km
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