Copyright © University of Cambridge. All rights reserved.

'Weekly Problem 27 - 2011' printed from http://nrich.maths.org/

Show menu


$35$ teenagers were asked what takeaways they liked to eat.
 

$24$ answered Chinese
$16$ answered Indian
$10$ answered pizza

None of the teenagers liked all three. All who liked pizza also liked Chinese and $9$ of the Chinese fans didn't like either Indian or pizza.
 
If all the teenagers liked at least one, how many liked only Indian?
 
 
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas. 
 

 

This problem is taken from the UKMT Mathematical Challenges.

View the previous week's solution
View the current weekly problem