何太太有曲奇塊50塊,昨天吃去12%,今天再吃去剩下的25%.
a)今天吃去曲奇餅多少塊?
b)現在剩下曲奇餅多少塊?
小六百分率應用
2011-01-27 2:38 am
回答 (7)
2011-01-27 2:45 am
✔ 最佳答案
50-(50*0.12=6)(44*0.25=11)(a)今天吃去11塊曲奇餅
(b)現在剩下33塊曲奇餅
2011-01-26 21:19:34 補充：
(50*0.12)=6係昨天的,而(44*0.25)=11是今日的,將50-6-11=33
2011-01-27 10:19 pm
a) 今天吃了曲奇 = 50X(1-12%)X25% = 11塊
b) 現在剩下曲奇 = 50X(1-12%)X(1-25%) = 33塊
b) 現在剩下曲奇 = 50X(1-12%)X(1-25%) = 33塊
2011-01-27 5:51 am
a)First find 昨天吃去曲奇餅 :
50 x 12%=6塊
Cookies left : 50 - 6 = 44 塊
今天吃去曲奇餅44 x 25% = 11 塊//
b)Yesterday ate : 6
Today ate : 11
現在剩下曲奇:
50-(6+11)= 33塊//
Hope i could help you ^ ^
50 x 12%=6塊
Cookies left : 50 - 6 = 44 塊
今天吃去曲奇餅44 x 25% = 11 塊//
b)Yesterday ate : 6
Today ate : 11
現在剩下曲奇:
50-(6+11)= 33塊//
Hope i could help you ^ ^
參考: ME
2011-01-27 3:00 am
a)50x(1-12%)x25%=11
b)50-11-(50x12%)=33
@_@
b)50-11-(50x12%)=33
@_@
2011-01-27 2:56 am
a)昨天剩下曲奇餅:50-50x12%=44塊
今天吃去曲奇餅:44x25%=11塊
b)現在剩下曲奇餅:44-11=33塊
今天吃去曲奇餅:44x25%=11塊
b)現在剩下曲奇餅:44-11=33塊
2011-01-27 2:42 am
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2011-01-27 2:40 am
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