37. Jonah has 72 solid-colored disks that are either red, blue, or green. He lines them up on the floor and finds that there are 15 more red disks than green and 9 more green disks than blue. How many red disks does he have?

Answer and Explanation

Your Answer is

Correct Answer is E

Explanation

Assuming that the number of red discs is x, the number of green discs is x-15, and the number of blue discs is x+9. Add the three sets of numbers together, and the sum is 72, so the value of x is 37. Choose E.