A tire shop had to fill 3 5/6 tires with air it took a small air compressor 3 4/6 seconds to fill them up how long would it take to fill 8 tires

Question

A tire shop had to feel 3 5/6 tires with air. It took a small air compressor 3 4/6 seconds to fill them up. How long would it take to fill 8 tires?

Answer 1

3 5/6 = 23/6

3 4/6 = 22/6

3 5/6 divided by 3 4/6 = (23/6)/(22/6) = 23/22 seconds to fill one tire = slightly over one second

8 tires would take 8 x 23/22 = 4x23/11 = 92/11 seconds to fill 8 tires = 8 4/11 seconds, = a little over 8 1/3 seconds