IDK's answer to Lind's Primary 6 Maths Speed Singapore question.
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Hi,
Aimya's error is she should have used the total distance travelled divide by the total time.
Therefore the solution is
(100+120)/(2+3)
=220/5
=44km/hr
Average speed is 44km/hr
Hope this helps :)
Aimya's error is she should have used the total distance travelled divide by the total time.
Therefore the solution is
(100+120)/(2+3)
=220/5
=44km/hr
Average speed is 44km/hr
Hope this helps :)
Date Posted:
3 years ago
Thank you
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