In a school of 150 students 80 offer French whi... - JAMB Mathematics 2016 Question
In a school of 150 students, 80 offer French while 60 offer Arabic and 20 offer neither. How many students offer both subjects?
A
45
B
10
C
35
D
30
correct option: b
80 - x + x + 60 - x + 20 = 150
160 - x = 150
x = 160 - 150 = 10
160 - x = 150
x = 160 - 150 = 10
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