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Notes:
1,000g = 1kg
1 Bag of Sugar = 460g
Total Mass of Bags = 3.9kg
= 460g × 3
= 1,380g
= 1,380g ÷ 1,000
= 1.38kg
= 3.9kg - 1.38kg
= 2.52kg
= 2.52kg ÷ 4
= 0.63kg
= 0.63kg × 1,000
= 630g
1 Bag of Flour Is 630g
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