美国大学逻辑题~谁能帮忙做出来

来源:百度知道 编辑:UC知道 时间:2024/05/28 02:29:44
while checking out a parking lot,Ann wrote down information about the vehicles she saw.in the lot there were vehicles that were cars or trucks,vehicle that were blue or red,and vehicles that were foreign or domestic. NOTE:a vehicle is in exactly one of each category:a car can not be a truck;a red vehicle cannot be blue;and a foreign vehicle cannot be domestic(and vice versa).Use Anni's information below to complete the Venn Diagram(label it any way you want?but only one label per circle).Then answer the questions.

known information:
1. 105 vehicles were blue.
2. 94vehicles were cars
3. 121 vehicles were foreign
4. 32 vehicles were blue,foreign cars
5. there were 50 red,domestic,trucks
6. 127 vehicles were blue or cars
7. There were 161 vehicles that were foreign or cars.
8. There were 58 foreign,blue vehicles
(a)How many red domestic cars were in the parking lot?
(b)what percent of the vehicles w

Blue/Red, Foreign/Domestic, Car/Truck
8 types:TAB和空格都会被百度吃掉,将就着看了.
________C__ T
B__ F__ BFC,BFT,
____D__ BDC,BDT,

R__ F__ RFC,RFT,
____D__ RDC,RDT

1.B=105
2.C=94
3.F=121
4.BFC=32
5.RDT=50
6.B+C-BC=127
7.F+C-FC=161
8.BF=58 => BFT=58-32=26

求:RDC=?,(R+C-RC)/all=?,all-RDT=?

________C______ T
B__ F__ BFC 32__BFT 26
____D__ BDC 40__BDT 7__ BDC+BDT=B 105 - BF 58=47

R__ F__ RFC 22__RFT 41__RFC+RFT=F 121 - BF 58=63
____D__ RDC 0__ RDT 50

BDC+RFC+RDC=C 94 - BFC 32=62
127-58=BDC+BDT+RFC+RDC=69
=> BDT=7 => BDC=105-58-7=40

161-58=BDC+RFC+RDC+RFT=103
=> RFT=41 => RFC=121-58-41=22
=> RDC=94-32-40-22= 0 (Q1)

ALL=216, R or C/all = 181/216=83.8% (Q2)

216-50=166 (Q3)