The grades of 36 students in a test are shown i... - JAMB Mathematics 2005 Question
A
7
B
8
C
9
D
12
correct option: a
Angle of Excellent
= 360 - (120+80+90)
= 360 - 290
= 70o
If 360o represents 36 students
1o will represent 36/360
50o will represent 36/360 * 70/1
= 7
= 360 - (120+80+90)
= 360 - 290
= 70o
If 360o represents 36 students
1o will represent 36/360
50o will represent 36/360 * 70/1
= 7
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