Question

find the sum of 4+12+20+.........+100​

Answer 1

Answer:

5044 is the right answer.

Step-by-step explanation:

First we will count the sum of the numbers from 1 to 100 then we will substract the sum of the numbers from 1 to 3

(100*101)/2-(1+2+3)=5050-6=5044

Thank you.