What is the average of all numbers between 9 and 90 which are divisible by 8?
A) 53 B) 52 C) 51 D) 50
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Answer:
52
Step-by-step explanation:
16,24,32....80,88
no. of terms = 10
sum (using AP formula) = 10(16+88)/2
Avg = 10(16+88)/20 = 52
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