1.

Two filling taps P and Q together can fill a tank with rate of 40 lit/min and 60 lit/min respectively in 8 min. If a waste tap can empty the filled tank in 32 min, then what is the rate of waste tap ?

Answer»

A) 34 lit/min
B) 25 lit/min
C) 22 lit/min
D) 18 lit/min

Answer :`19 . 5 cm^(2)`


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