Nusboy's answer to Nancy's Primary 5 Maths Whole Numbers Singapore question.
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Let Xavier's number of paper plane be x.
Yumin = x + 10
Zachary = 3x
145 paper planes = x + x + 10 + 3x
= 5x + 10
5x = 145 - 10 = 135
x = 135 ÷ 5 = 27
Therefore, Xavier made 27 paper planes.
Yumin = x + 10
Zachary = 3x
145 paper planes = x + x + 10 + 3x
= 5x + 10
5x = 145 - 10 = 135
x = 135 ÷ 5 = 27
Therefore, Xavier made 27 paper planes.
Date Posted:
5 years ago
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