Jia Qi's answer to Jane lee's Primary 6 Maths Percentage Singapore question.
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Find the total distance from A to B first:
total distance = 64 (Mabel’s speed) x 3 (time Mabel travelled when Paula reaches point B) + 53 = 245km
Then you can find Paula’s speed:
Paula’s speed = 245 divided by 3.5 (time taken for Paula to travel) = 70km/h
total distance = 64 (Mabel’s speed) x 3 (time Mabel travelled when Paula reaches point B) + 53 = 245km
Then you can find Paula’s speed:
Paula’s speed = 245 divided by 3.5 (time taken for Paula to travel) = 70km/h
Date Posted:
4 years ago
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