Question

Gerald and his dog Spike get on the scale together. Their combined weight is 128 pounds. If the ratio of Gerald's weight to Spike's weight is 3:1, how much does Gerald weigh?

Answer 1

96lbs

Explanation:

g + s = 128

g = 3s

3s + s = 4s = 128

s = 128/4 = 32

g = 3s = 96

Answer 2

Gerald weighs 96 pounds. Spike weighs 32 pounds.