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16 Sep 2014, 00:44
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Tub A and Tub B each contain 540 liters of water. Every minute, Tub A loses 25 liters of water, whereas Tub B loses 15 liters. After how many minutes will Tub B have 6 times as much water as Tub A?
A. 15
B. 20
C. 25
D. 30
E. 40
A. 15
B. 20
C. 25
D. 30
E. 40
16 Sep 2014, 00:44
Kudos
Bookmarks
Official Solution:
Tub A and Tub B each contain 540 liters of water. Every minute, Tub A loses 25 liters of water, whereas Tub B loses 15 liters. After how many minutes will Tub B have 6 times as much water as Tub A?
A. 15
B. 20
C. 25
D. 30
E. 40
Let's denote the required amount of time as \(x\) minutes. Based on this, we can set up the equation: \(6(540 - 25x) = 540 - 15x\). Solving this equation, we determine that \(x = 20\).
Answer: B
Tub A and Tub B each contain 540 liters of water. Every minute, Tub A loses 25 liters of water, whereas Tub B loses 15 liters. After how many minutes will Tub B have 6 times as much water as Tub A?
A. 15
B. 20
C. 25
D. 30
E. 40
Let's denote the required amount of time as \(x\) minutes. Based on this, we can set up the equation: \(6(540 - 25x) = 540 - 15x\). Solving this equation, we determine that \(x = 20\).
Answer: B
30 Jan 2015, 13:54
Kudos
Bookmarks
Hi,
I find it hard to visualize this problem. I am following MGMAT approach of creating the table. Can you please explain a bit more for this problem?
I find it hard to visualize this problem. I am following MGMAT approach of creating the table. Can you please explain a bit more for this problem?
