Ruth Sin's answer to blur blur's Secondary 1 Maths Singapore question.
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Easiest way is to just find the rate of each person and compare.
If concept of rate alludes you, then you can use a comparison chart to find for the same number of planes, how long each person needs to fold them. Compare 2 people first and use the faster person to compare with the third person.
If concept of rate alludes you, then you can use a comparison chart to find for the same number of planes, how long each person needs to fold them. Compare 2 people first and use the faster person to compare with the third person.
Date Posted:
2 months ago
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