90 minutes is what percent of an hour?

"Time conversion:

1 hour = 60 minutes

Base = 60 minutes, Percentage = 90 minutes, Rate = ?

Solve for Rate:

Rate = Percentage / Base

= 90 minutes / 60 minutes

= 1.5

Convert 1.5 to percent:

1.5 multiply by 100%

1.5(100%)

= 150%

Answer: 150%"