The annual average rainfall in a tropical city is 1000 mm. On a particular rainy day (24-hour period), the cumulative rainfall experienced by the city is shown in the graph. Over the 24-hour period, 50% of the rainfall falling on a rooftop, which had an obstruction-free area of 50 m2 was harvested into a tank. What is the total volume of water collected in the tank in liters?

The annual average rainfall in a tropical city is 1000 mm. On a partic

1.	The annual average rainfall in a tropical city is 1000 mm. On a particular rainy day (24-hour period), the cumulative rainfall experienced by the city is shown in the graph. Over the 24-hour period, 50% of the rainfall falling on a rooftop, which had an obstruction-free area of 50 m2 was harvested into a tank. What is the total volume of water collected in the tank in liters?
A.	25,000
B.	18,750
C.	7,500
D.	3,125
Answer» D. 3,125