# A 3-in-thick slab is 10 in wide and 15 ft long. The thickness of the slab...

###### Question:

A 3-in-thick slab is 10 in wide and 15 ft long. The thickness of the slab is reduced by 20% and width increases by 3% in a hot-rolling operation. If the entry speed of the slab is 40 ft/min, determine (a) length    ft and (b) exit velocity of the slab ft/min