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Question Stats:
71% (01:45) correct 29% (02:00) wrong based on 3461 sessions
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File comment: Now
F= total number of students studying french =F
S= total number of students studying Spanish =S
F' = Students studying only french
S'=Students studying only spanish
F & S = students studying both french and spanish
Now we need to find out F & S
We have F + S =300 (whether french or spanish or both)
S' =100 (Students who study spanish but not french)
1.Of the 300 students, 60 do not study Spanish
this 60 = F'( students who study only french but not spanish)
so now looking at diagram F'+S'+ F&S = F+S =300
substituting 100+60+ F&S =300
F&S =140
2. A total of 240 of the students study Spanish
i.e. S'+ F&S =240 (total who study spanish)
we know S' =100
so F&S =140.
Give me KUDOS if this helps
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Study Spanish | Don't Study Spanish | Total | |
---|---|---|---|
Study French | ? | ? | 200 (300 - 100) |
Don't Study French | ? | 0 | 100 |
Total | 240 (from statement 2) | 60 (300 - 240) | 300 |
Study Spanish | Don't Study Spanish | Total | |
---|---|---|---|
Study French | ? | 200 - ? | 200 |
Don't Study French | 100 - ? | 0 | 100 |
Total | 240 | 60 | 300 |
Study Spanish | Don't Study Spanish | Total | |
---|---|---|---|
Study French | 140 | 60 | 200 |
Don't Study French | 100 | 0 | 100 |
Total | 240 | 60 | 300 |
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Hi Generic [Bot],
Here are updates for you:
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Watch earlier episodes of DI series below EP1: 6 Hardest Two-Part Analysis Questions EP2: 5 Hardest Graphical Interpretation Questions
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