Question

the sum of all even numbers from 20 to 120 is​

Answer 1

Answer:

200 - 20=180 all numbers

180/2 +1=91 terms

(F+(F+(N-1) X D)) X 1/2 X N=

(20+(20+(91-1) X 2)) X 1/2 X 91=10,010

Step-by-step explanation:

200 - 20=180 all numbers

180/2 +1=91 terms

(F+(F+(N-1) X D)) X 1/2 X N=

(20+(20+(91-1) X 2)) X 1/2 X 91=10,010

Answer 2

180 is the right answer