數學唔識做
2011-09-17 7:40 am
mrs law bought 2kg of nuts.she gave 3 over 7 of the nuts (by weight) to mrs chan.what weight of nuts was left?
回答 (1)
2011-09-17 8:50 am
✔ 最佳答案
Mrs law bought 2 kg of nuts. She gave 3 over 7 of the nuts (by weight)to Mrs chan. What weight of nuts was left?Solution :
Weight of nuts left
= (2 kg) x [1 - (3/7)]
= 2 x (4/7) kg
= 8/7 kg
= (1 and 1/7) kg
參考: Tsui
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