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JAMB - Mathematics (2005 - No. 35)

The grades of 36 students in a test are shown in the pie chart above. How many students had excellent?
7
8
9
12

Forklaring

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

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