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प्रश्न
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 |
How much less per cent of water is used for cooking in comparison to that used for bathing?
उत्तर
On the basis of given details, water used for bathing per day = 20 L
Water used for sanitation = 40 L
Total water used per day = 150 L
Water used for cooking per day = 4 L
Water used for bathing per day = 20 L
Difference between water used for cooking and bathing = 20 – 4 = 16 L
= 16 L water less used for cooking in comparison of bathing
In percentage = `16/150 xx 100`
= `160/15`
= `32/3%`
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