All you need is a Venn diagram with two intersecting circles.
let the number who study Geography be x
then the number who study French is x+10
place 20 in the intersection,
place x - 20 in the "French only" par
place x+10 - 20 or x-10 in the Geography only part
x-20 + 20 + x- 10 = 40
2x = 50
x = 25
complete the entries in your Venn diagram and state the conclusions
In a class the number of students who study French or Geography is 40, 20 study both subjects and the number that study French is 10 more than the number studying geography. Illustrate on a Venn diagram hme information above. How many students study French? How many students study Geography? Find the number who study French only. Find the number who study geography only.
2 answers
Draw the venn diagram for me
1 answer