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

GATE · 2018 · CE · Set 2 · General Aptitude

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?

Cumulative rainfall rises from 0 mm at hour 0 to 100 mm at hour 9, 200 mm at hour 12, remains 200 mm to hour 15, reaches 300 mm at hour 18, and remains 300 mm through hour 24.
  1. A.

    25,000

  2. B.

    18,750

  3. C.

    7,500

  4. D.

    3,125

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