阿樂用25公克咖啡粉加水75公克泡一杯香香濃濃的咖啡,小娥想泡500公克相同濃度的咖啡,他該用多少公克的咖啡粉?
1下 3-1 比例式

Quiz
•
Mathematics
•
7th Grade
•
Hard
康軒數位 康軒數位
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
10
8
2
0
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
柯南和步美每月零用錢比為1:2,每月花費的比為3:5,月底兩個人結算,柯南透支1000元,步美還存下500元,求柯南零用錢是多少元?
5000
6500
5500
1500
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1:6
2:3
4:1
4:3
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某次英文考試有60%的人不及格,不及格者平均分數為56分,及格者平均分數為72分,則這次英文考試成績的平均分數為多少?
61.4
62.3
62.4
62.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
民國72年母子年齡比4:1,民國92年母子年齡比2:1,則民國102年,母子年齡比為多少?
3:1
5:2
7:4
9:5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1. 若a與b是不互質的兩整數,要將a:b化為最簡整數比必須計算(a÷m):(b÷m),則其中的m=?
[a , b]
(a , b)
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