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a box half full of apples weighs 40kg and the same box one fifth full weighs 22kg, what does the box weigh when empty?
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Jan 5, 2016
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a box half full of apples weighs 40kg and the same box one fifth full weighs 22kg, what does the box weigh when empty?
Mathematics
high-school
Kostas Dimakis
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Kostas Dimakis
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1/2 = 40kg
1/5 = 22kg
1/2 = 5/10
1/5 = 2/10
3/10 is the difference between 18kg.
This means 1/10 of the box filled with apples is 6kg.
40 - (5 x 6) = 10kg. The box weighs 10kg alone.
Kias
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Jan 6, 2016
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Kias
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5
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1/2 = 40kg
1/5 = 22kg
1/2 = 5/10
1/5 = 2/10
3/10 is the difference between 18kg.
This means 1/10 of the box filled with apples is 6kg.
40 - (5 x 6) = 10kg. The box weighs 10kg alone.
MsA
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Jan 11, 2016
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MsA
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