The average of 20, 25, 35, 15, a, 30 is 22.5. The value of a is: – McqOptions

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1.	The average of 20, 25, 35, 15, a, 30 is 22.5. The value of a is:
A.	13
B.	12.5
C.	10
D.	15
Answer» D. 15

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