Little Texas Drilling Company has three wells, each producing oil at a constant rate.
Little Texas Drilling Company has three wells, each producing oil at a constant rate. Well A produces one barrel every two minutes. Well B produces one barrel every three minutes. Well C produces one barrel every four minutes. How many hours does it take Little Texas Drilling Company to produce 115 barrels of oil?
Answer/Solution
2
Steps/Work
Well A produces 1/2 a barrel per minute.
Wells B and C produce 1/3 + 1/4 = 7/12 (a little more than half) a barrel per minute.
So all three wells combined produce a little more than 1 barrel per minute.
So for 115 barrels they will take a bit less than 115 mins which will be more than 1 hrs but less than 2 hrs.
Answer (A)
Wells B and C produce 1/3 + 1/4 = 7/12 (a little more than half) a barrel per minute.
So all three wells combined produce a little more than 1 barrel per minute.
So for 115 barrels they will take a bit less than 115 mins which will be more than 1 hrs but less than 2 hrs.
Answer (A)