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The diagram shows the percentage of people in a Bhopal ward who use three payment apps; the number outside uses none. If 105 people use at least two apps, how many use none?

Competition practiceVenn Diagrams
  • A22
  • B390
  • C105
  • D110

Step-by-Step Solution

At least two , and 21% is 105 people, so the ward has 500. None of 500 . 22 is the percentage, 390 is the 78% who use at least one app, and 105 repeats the given number.
Answer: D) 110

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