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An average urban Indian uses about \(150\) litres of water every day.
| Activity | Litres per person per day |
| Drinking | \(3\) |
| Cooking | \(4\) |
| Bathing | \(20\) |
| Sanitation | \(40\) |
| Washing Clothes | \(40\) |
| Washing utensils | \(20\) |
| Gardening | \(23\) |
| Total | \(150\) |
(a) What percent of water is used for bathing and sanitation together per day?
(b) What percent of water is used for drinking, cooking and gardening together?
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