Forgot password
 Register account
View 2190|Reply 6

[组合] 统筹规划。一题。小学奥数

[Copy link]

68

Threads

406

Posts

3

Reputation

Show all posts

Tesla35 posted 2015-7-14 19:48 |Read mode
Last edited by hbghlyj 2025-6-13 19:07盛盛、东东、飞飞一起折纸,要折星星40个,纸鹤20只,已知盛盛折一个都要3分钟,折星星要1分钟:东东折纸鹤5分钟,折星星2分钟,飞飞折纸鹤4分钟,折星星3分钟.现在三人一起开始折纸,完成所有任务最短需要多久?

84

Threads

2340

Posts

4

Reputation

Show all posts

其妙 posted 2015-7-15 15:16
一道头疼的小学数学题:

妈妈的年龄比孩子大21岁,六年后妈妈的年龄是孩子的5倍,求孩子的爸爸现在在哪?

673

Threads

110K

Posts

218

Reputation

Show all posts

kuing posted 2015-7-15 15:21
回复 2# 其妙

群里都扯过了啊,别水了,这个应该发到吹水区

84

Threads

2340

Posts

4

Reputation

Show all posts

其妙 posted 2015-7-17 20:37
回复  其妙

群里都扯过了啊,别水了,这个应该发到吹水区
kuing 发表于 2015-7-15 15:21
的确没人做这道令人头疼的小学数学题

81

Threads

434

Posts

12

Reputation

Show all posts

tommywong posted 2015-7-19 19:31
拎鎬先

model:
min=@smax(3*a1+a2,5*b1+2*b2,4*c1+3*c2);
a1+b1+c1>40;
a2+b2+c2>20;
@gin(a1);@gin(a2);
@gin(b1);@gin(b2);
@gin(c1);@gin(c2);
end

min T=60
a1=13
a2=20
b1=12
b2=0
c1=15
c2=0

24

Threads

1014

Posts

46

Reputation

Show all posts

战巡 posted 2015-7-19 23:48
楼上应该是把20和40搞反了
42.jpg

84

Threads

2340

Posts

4

Reputation

Show all posts

其妙 posted 2015-7-25 10:27
回复 6# 战巡

Quick Reply

Advanced Mode
B Color Image Link Quote Code Smilies
You have to log in before you can reply Login | Register account

$\LaTeX$ formula tutorial

Mobile version

2025-7-15 15:16 GMT+8

Powered by Discuz!

Processed in 0.013895 seconds, 26 queries