GRE Math Problem 26

The sum of four consecutive odd positive integers is always
(A) an odd number
(B) divisible by 4
(C) a prime number
(D) a multiple of 3
(E) greater than 24

Solution for GRE Math Problem 25:

And again we have the right triangle with legs of 180 and 240. And again we don't have to get square root from 180²+240². We can notice, that 180=3x60 and 240=4x60. So, it is an Egyptian triangle with hypotenuse of 5x60=300 yards.
Answer:(B) 300 yards