Mirsha M.

asked • 09/27/15

Pollution in a river

Two chemical plants are polluting a river. If plant A produces a predetermined maximum amount of pollutant twice as fast as plant B, and together they produce the maximum pollutant in 26hr, how long will it take plant b alone?
 

1 Expert Answer

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Michael J. answered • 09/27/15

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Applying SImple Math to Everyday Life Activities

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Let the time for A = 2x
Let the time for B = x
 
 
Together, their maximum pollutant time is 26 hr.
 
x + 2x = 26
 
 
Solve for x.
 
3x = 26
 
x = 26 / 3
 
Convert this value of x into a mixed number.
 
 
x = 8 2/3
 
It takes Plant B    8 2/3 hr alone.
 
 
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Ketaki M.

that wont be correct Micheal.
 
the plant B   alone should take more than 26 hours.
shouldnt it?
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09/27/15

Ketaki M.

it should be 34 hours as per my understanding.
 
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09/27/15

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