Question 609583
John works at a bike shop. 
He can put together 8 bikes in 6 hours. 
At this rate, how long will it take to put together 5 bikes? 
:
Let x = hrs to put together 5 bikes
:
{{{5/8}}} = {{{x/6}}}
Cross multiply
8x = 5*6
8x = 30
x = 30/8
x = 3.75 hrs or 3hrs 45min, to put together 5 bikes