The grades of 36 students in a class test are as shown in the pie chart above. How many students have excellent?

a
12
b
9
c
8
d
7
Explanation
Correct Option
dVideo Explanation
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Discussions (4)

TeekayCarter
11 years ago
Wrong. The correct answer is D. very good is equivalent to 90 degrees. Add all the knowns and you'll get 290. which excludes the excellent. 360-290 = 70. therefore (70/360) x 36 (students) = 7.

tayostic
10 years ago
The selected answer is wrong:
u add the degree first,which is 120+90+80=290, then 360-290=70. that means d degree of excellent is 70. then the calculation of those that have excellent= 70/360*100=7. if u tink am wrong,try dis same calculation for d rest. e.g for very good = 90/360*100=9


