(50 - 15) study bio, eco, or both ... 35 students
30 study bio , so (35 - 30) study only eco
25 study eco , so (35 - 25) study only bio
15 study only one subject , so (35 - 15) study both
in a class of 50 students ,30 study biology and 25 study economics .15 study neither biology nor economics
a.how many take both subjects?
b.how many take only biology?
c.Ho many take economics only?
10 answers
Show The workings
How did you get 35?
I did not see the Venn diagram and the workings
Bankole
30-x+x+25-x=50
30+25-x-x+x=50
55-1x
-1x=50-55
X=-5รท-1
Minus will cancel minus
Therefore..x=5
30+25-x-x+x=50
55-1x
-1x=50-55
X=-5รท-1
Minus will cancel minus
Therefore..x=5
Ple send the Venn diagram and the workings
I didn't see the Venn diagram there and the intersection
Great
Pls solve it using Venn diagram
1 answer