With both inlets open, a water tank will be filled with water in 42 minutes. The first inlet alone would fill the tank in 2 hours. If in every minutes the second inlet admits 50 cubic meters of water than the first, what is the capacity of the tank ?
Choose the correct option:  A) 7,000  B) 10,500  C) 11,750  D) 12,000  E) 13,000
The work Done by Inlet A and B together in 1 min = 1/42   The work Done by Inlet A (First Inlet) in 1 min = 1/120   The work Done by Inlet B (Second Inlet) in 1 min = (1/42)- (1/120) =1/65   DIfference of Work done by B and A = B - A = 50 Cubic meter   i.e. (1/65)- (1/120) = 50 Cubic meter   = 7000 Cubic Meter   7,000nswer: option 7,000
<result>A</result>
With both inlets open, a water tank will be filled with water in 42 minutes. The first inlet alone would fill the tank in 2 hours. If in every minutes the second inlet admits 50 cubic meters of water than the first, what is the capacity of the tank ?