# The Sum of First 84 Even Numbers is

**Answer: (1) 7140
Explanation:-
**First even number is 2,4,6,8, ………………………168

The sum of first even number = 2 + 4 + 6 + ………………….+ 168

Sum = (n/2) x (first number + last number)

then, first number = 2 and last number = 168

The sum of first 84 even number = (84/2) x (2 + 168)

= 42 x 170 = 7140

Hence, the sum of the first even number is 7140.