EduFarming
Your list · 0हिं

Type at least two letters. Press Esc to close.

↑↓ navigate↵ openTAB cycle filter

Venn Diagrams · Question 36 of 65

According to the village news diagram, how many families use at least two of the three sources?

Question 36

MediumOriginal question

According to the village news diagram, how many families use at least two of the three sources?

Venn diagram of three overlapping circles labelled Newspaper, Radio and Television inside a box labelled Families in a village. Only Newspaper: 18. Only Radio: 7. Only Television: 40. Newspaper and Radio only: 5. Newspaper and Television only: 22. Radio and Television only: 9. All three: 11. Outside all three: 8.
Options for question 36

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. At least two means exactly two or all three.

  2. Exactly two =5+22+9=36= 5 + 22 + 9 = 36; all three =11= 11.

  3. At least two =36+11=47= 36 + 11 = 47.

Worth noting

36 stops at exactly two and forgets the centre; 11 is the centre alone; 25 subtracts the centre instead of adding it.

Concept
At least two equals exactly two plus all three
Typical time
70 s
Your time
—
The rule this testsReading a labelled diagram
Practise this chapter →

Ten questions from Venn Diagrams, at your own pace.

Practise this chapter →

Ten questions from Venn Diagrams, at your own pace.

Practise this chapterAll 65 questions in Venn DiagramsRevise the notes for Venn Diagrams