Question

You can do 90 sit-ups in 2 minutes. Your friend can do 135 sit-ups in 3 minutes. Do these rates form a proportion? Explain.

Answer 1

My situps in 1 minute = 90/2 = 45

Friend sit-ups in 1 minute = 135/3 = 45

So, proportion would be 45/45 = 1.

As it is forming directly one, so we can say these rates did not form a proportion.