What is the sum of all integers that are multiples of 4 from 1 to 150? *Show your solution*

There's a pretty simple formula to follow: count of multiples average of the multiple.

To find the average, we take the smallest multiple of 4 which is in the range of 1 and 150 which is 4 of course. And the largest would be 148 since that's the only number in the range. So now average them:

Now we find the count of the multiples which is in the range of 1 to 150. To do that, we use this formula:

Here, is 4 so this would be:

This would give you the exclusive count of all the numbers, but we want the inclusive count so, we simple add 1 so the count would be

Now following the 1st formula we get:

So the answer would be 2812! :D

And here's the check too:

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!