Which is the better buy? $15.40 for 3.5 lbs of gummy bears or $7.65 for 1.8 lbs of gummy bears

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles