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# A teacher took a container filled with 16 liters of water to a school

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Math Expert
Joined: 02 Sep 2009
Posts: 51215
A teacher took a container filled with 16 liters of water to a school  [#permalink]

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26 Jun 2018, 20:36
00:00

Difficulty:

15% (low)

Question Stats:

87% (00:46) correct 13% (00:57) wrong based on 40 sessions

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A teacher took a container filled with 16 liters of water to a school picnic. After several students had taken water from the container, the container had 14 liters of water left. What was the percent decrease in the amount of water in the container?

A) 6.25%

B) 8%

C) 12.5%

D) 14.3%

E) 87.5%

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Joined: 02 Sep 2015
Posts: 42
Re: A teacher took a container filled with 16 liters of water to a school  [#permalink]

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26 Jun 2018, 21:17
Percentage = Difference / Starting
= (16 - 14) /16
= 1/8
= 12.5%

e-GMAT Representative
Joined: 04 Jan 2015
Posts: 2306
Re: A teacher took a container filled with 16 liters of water to a school  [#permalink]

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26 Jun 2018, 22:39

Solution

Given:
• A teacher took a container filled with 16 liters of water to a school picnic
• After several students had taken water from the container, the container had 14 liters of water left

To find:
• The percent decrease in the amount of water in the container

Approach and Working:
Initially the water amount was 16 liters and finally it became 14 liters
• Decrease in the amount of water = (16 – 14) liters = 2 liters
• Therefore, percent decrease = $$\frac{2}{16} * 100$$ = 12.5%

Hence, the correct answer is option C.

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Re: A teacher took a container filled with 16 liters of water to a school &nbs [#permalink] 26 Jun 2018, 22:39
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