The grades of 36 students in a class test are as shown in...
The grades of 36 students in a class test are as shown in the pie chart above. How many students have excellent?
12
9
8
7
Correct answer is D
Excellent = 360° - (120° + 90° + 80°)
= 70°
Number of excellent students = \(\frac{70}{360} \times 36\)
= 7 students
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