Question

Alexa can blow 15 balloons in 20 minutes. Sara can blow 18
balloons in 25 minutes, Shirley can blow 16 balloons in 21
minutes and Sam can blow 12 balloons in 23 minutes.

Assuming that all balloons are blown to the same size, who can blow
balloons at the fastest rate?

Answer 1

rate of blowing balloons of Alexa = 15/20 = 0.75

rate of blowing balloons of Sara = 18/25 = 0.72

rate of blowing balloons of Shirley= 16/21 = 0.76

rate of blowing balloons of Sam = 12/23 = 0.52

from above calculation we concluded Shirley can blow balloons at the fastest rate!