begin array c c No of days amp 1 amp 2 amp 3 am... - JAMB Mathematics 2009 Question
The distribution above shows the number of days a group of 260 students were absent from school in a particular term. How many students were absent for at least four days in the term
A
180
B
120
C
110
D
40
correct option: a
3x + 170 = 260
3x = 260 - 170
3x = 90 (\to) x = 30
therefore, 20 + 2x + 60 + 40
= 180
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