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1. |
A rural water supply scheme serves a population of 10,000 at the rate of 50 litres per capita per day. For the chlorine dose of 2 ppm, what will be the required amount of bleaching with 20% available chlorine? |
A. | 15 kg |
B. | 5 kg |
C. | 10 kg |
D. | 0.5 kg |
Answer» C. 10 kg | |