in a group of 20 children, 8 drink tea but not coffee and 13 like tea, how many number of children drinking coffee but not tea

              From the above Venn diagram we can say that the number of children drinking coffe but not tea is 7.

hi

my answer is 0 to 7

becuse it is said that 13 like tea so some time or the other they must have drunk it. Also there is no guarantee that atleast 1 child drinks coffee.so all numbers from 1 to 7 is my answer