Janice is studying the effect of pipe size on water flow rates. In

12 minutes, 463.2 gallons of water flowed from a 2-inch pipe. In

7 minutes, 1730.4 gallons of water flowed from a 4-inch pipe.

Based on Janice's data, what is the difference in flow rate

between a 2-inch and 4-inch pipe?

208.6 gal/min

Step-by-step explanation:

For 2" pipe,

Given Volume = 463.2 gal, time = 12 min

flow rate for 2" pipe

= Volume : time

= 463.2:12

= 38.6 gal/min

For 4" pipe,

Given Volume = 1730.4 gal, time = 7 min

flow rate for 4" pipe

= Volume : time

= 1730.4:7

= 247.2 gal/min

Difference in flow rate = 247.2 - 38.6 = 208.6 gal/min