mandy2384 mandy2384 02-06-2022 Mathematics contestada URGENT Christian installed an electric pump to pump water from a borehole into a 30 000 litre cement dam. If the water is pumped at a rate of 75 litres per minute. How long does it take to fill the dam? A 4 h B. 6 h 40 min C 6 h 20 min D 3 h 40 min