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DIA [1.3K]
4 years ago
8

A tank can be filled by one pipe in four hours and by a second pipe in six hours; and when it is full, the tank can be drained b

y a third pipe in three hours. If the tank is empty and all three pipes are open, in how many hours will the tank be filled?
A. 8 hours
B. 12 hours
C. 24 hours
Mathematics
2 answers:
RideAnS [48]4 years ago
8 0
I think its B.  In 12 hrs, the tank will be filled with
<span>all 3 pipes open</span>
I am Lyosha [343]4 years ago
8 0
The correct answer would be 
B) 12 hours.

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The distance you are from the base of plateau = 99.97\ m\approx 100\ m

Step-by-step explanation:

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We will construct a triangle ABC to model the given situation. The triangle would be a right triangle for which we know an angle and its opposite side. We need to find the adjacent side of the triangle.

We will apply trigonometric ratio to find the adjacent side.

\tan\theta=\frac{Opposite\ Side}{Adjacent\ Side}

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