+0  
 
0
145
1
avatar

A group of students were asked to choose between blue and red, the colour they like 70% chose blue and 50% chose red. Each student in the group chose at least one of the two colours.

 

i. Represent the information on a Venn diagram.

ii .If 10 students chose both colours, find the number of students who chose:
a. only red
b only blue

iii. How many students were in the group?​

 Feb 24, 2021
 #1
avatar+34376 
+1

Here is a quick sketch of  Venn diagram if there were 100 %  students:

   if 10 reprsents 20 %        then there were 50 students in the poll

     25 choose only Blue      15 only red      10   both

 

 Feb 24, 2021

27 Online Users

avatar