Find the sum of the first 15 multiples of 8.

Let to be a is first term and ‘d'” is common difference and l is last term of Given Arithmetic Sequence or Progression.

Arithmetic Sequence or Progression;- 8,16,24,32….

Here, First term= 8

Common Difference=8

Number of terms=15

We know that Formula of Summation of Arithmetic Sequence or Progression.





=15/2 x 128

=15 x 64


The sum of the first 15 multiples of 8 is 960.

Leave a Comment

Your email address will not be published. Required fields are marked *


Free Class