A pump can be operated both for filling a tank and for emptying it. The capacity of tank is 2400 m3. The emptying capacity of the pump is 10 m3 per minute higher than its filling capacity. Consequently, the pump needs 8 minutes less to empty the tank than to fill it. Find the filling capacity of the pump.
(a) 45 m³/minute
(b) 30 m³/minute
(c) 50 m³/minute
(d) 55 m³/minute
(e) None of these
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i guess 30 m^3/min ok
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