Question

The sum of four consecutive integers is 78. What
are the 3rd and 4th integers?

Answer 1

20, 21

Explanation:

The number halfway between the middle two integers is the average of the four:

78/4 = 19.5

Then the four integers are 18, 19, 20, 21.

The 3rd and 4th integers are 20 and 21.