Question on: JAMB Mathematics - 2003

The result of tossing a fair die 120 times is summarized above. Find the value of x
A
19
B
20
C
21
D
22
Ask EduPadi AI for a detailed answer
Correct Option: B

12 + 20 + x + 21 + x-1 +28 = 120

2x + 80 = 120

2x = 120 - 80

2x = 40

x = 20

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