Question

find the sum of all even numbers between 1 to 350​

Answer 1

Answer:

AP

= 2,4 , 6 ......348

348 = a +(n-1)(d)

348 = 2 + (n-1)(2)

1 + n - 1 = 174

n = 174

the sum of first n even numbers can be given by

n(n+1)

= 174(175)

=30450

hope this will help you

Answer 2

THE ANSWER IS 30800

please go through the attachment