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About Abe Mantell
Expertise
Hello, I am a college professor of mathematics and regularly teach all levels from elementary mathematics through differential equations, and would be happy to assist anyone with such questions!

Experience
Over 15 years teaching at the college level.

Organizations
NCTM, NYSMATYC, AMATYC, MAA, NYSUT, AFT.

Education/Credentials
B.S. in Mathematics from Rensselaer Polytechnic Institute
M.S. (and A.B.D.) in Applied Mathematics from SUNY @ Stony Brook

You are here: Experts > Science > Math for Kids > Word Problems > Set Theory - Venn Diagram Problem

Word Problems - Set Theory - Venn Diagram Problem

Expert: Abe Mantell - 7/18/2009

Question
In a survey of 200 people, 15% don’t have driving licence, 10% were charged for parking ticket one or more time and 78% neither had licence nor were charged for parking ticket one or more time. What are the number of people who don’t have licence and also were charged for parking ticket one or more time?

Answer
Hello Vandhana,

Are you certain you have the problem correct? Only 15% (or 30 ppl) DO NOT have a driver's license,
but them 78% (or 156 ppl) DO NOT have a license AND did NOT have a parking ticket. That last info
cannot exceed the 15% who do not have a license. See?

TTYL, Abe

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