1. What is the average of all numbers between 8 and 74 which are divisible by 7?
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By: anil on 05 May 2019 01.44 am
The numbers between 8 and 74 which are divisible by 7 are 14, 21, 28, 35, 42, 49, 56, 63, 70. sum = 378 average = 378/9 = 42. SHORTCUT: average = 7*(average of 2, 3, 4, 5, 6, 7, 8, 9, 10) = 7*(6) = 42. so the answer is option C.
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