SOLUTION: Solve for the sum of all positive integers, from 5 to 85, that can be divided by 5. a. 765 b. 840 c. 460 d. 910

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Question 1162190: Solve for the sum of all positive integers, from 5 to 85, that can be divided by 5.
a. 765
b. 840
c. 460
d. 910
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!

All the multiple of five will for an ap
with first term 5
last term 85
common difference=5
and number of terms =85%2F5=17
so sum of all terms =17%285%2B85%29%2F2=765
answer: a. 765

Answer by ikleyn(52754) About Me  (Show Source):
You can put this solution on YOUR website!
.

For your info:

            Every number can be divided by  5,  but not every number is divisible by  5.

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    My post is a gentle explanation that your formulation is incorrect.