Question

age
Find the number of terms if sum of
Sum of an A.P.
9, 17, 25...
is 636?​

Answer 1

Answer:

where is the sum of first term to nth term of the AP, a is the first term, d is the common difference and n is the number of terms of AP. In the given Question, sum of APs is 636. Hence, Number of terms of the AP [ 9 , 17 , 25 ] which are required to make the sum of 636 is 12.

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