Asked by OTU ANTHONY

In a class 16 students do geography 18 do chemistry 5 do both and 3 do neither.how many students are in the class
Answered by OTU ANTHONY
x=16+18+5+3=42 :x=42
Answered by Reiny
No,
the 5 that do both are counted in the 16 geography students, AND the 18 chemistry students, so you are counting them twice

number of students = 16+18 - 5 + 3 = ....

make a Venn diagram to see.
Answered by OTU ANTHONY
32
Answered by Temi
It very nice
Answered by Gigave
Answer
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