WiFi's answer to Ashmita's Primary 6 Maths Singapore question.
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Given Ron speed to be 3.5km/h,
Start off by converting time from minutes to hour , time taken = 30mins = 0.5hr
Distance travelled by Ron = speed x time taken = 3.5km/h x 0.5h = 1.75km
Since they walked in opposite direct and end up being 4km apart,
Distance travelled by Jake = 4km - 1.75km = 2.25km
Speed of Jake = distance / time taken = 2.25 / 0.5 = 4.5km/h
Start off by converting time from minutes to hour , time taken = 30mins = 0.5hr
Distance travelled by Ron = speed x time taken = 3.5km/h x 0.5h = 1.75km
Since they walked in opposite direct and end up being 4km apart,
Distance travelled by Jake = 4km - 1.75km = 2.25km
Speed of Jake = distance / time taken = 2.25 / 0.5 = 4.5km/h
Date Posted:
4 years ago
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