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?

Guest Feb 24, 2021

#1**+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

ElectricPavlov Feb 24, 2021