What is the average of all numbers between 8 and 74 which are divisible by 7?
Answers
Answered by
5
(14+21+28+35+42+49+56+63+70)/9
=378/9
=42
=378/9
=42
Answered by
7
Answer:
The correct answer is 42
Step-by-step explanation:
Numbers between 8 to 74 which are divisible by 7 is the 7 table sequence from 14 to 70 : 14 21 28 35 42 49 56 63 70.
The numbers are in A.P. with common difference(d) = 7.
Now, n is no. of terms = 9 , a is the first term = 14 and d is common difference = 7
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