AP ICET 2017 Shift 1 Paper

Question : 96 of 200

Marks: +1, -0

Two taps can fill a water tank individually in 10 min and 12 min. Due to a leakage 5 lit of water is drained every minute. If both the taps are opened the empty tank can be filled in 7.5 min, then the capacity of the tank (in liters)

Validate

Solution:

Let the capacity of tank be x tire.

7.5(\;\;{x}/{10}+{x}/{12}-5)=x

⇒x({7.5}/{10}+{7.5}/{12}-1)=7.5×5

⇒x({45+37.5-60}/{60})=37.5⇒x={37.5×60}/{22.5}

= 100 litre

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