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प्रश्न
Only one-fifth of water is available in liquid form. This limited amount of water is replenished and used by man recurrently. Express this information as percent, showing:
(i) water available in liquid form.
(ii) water available in frozen form.
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उत्तर
Let the total quantity of water = 1
Water available in liquid form = `1/5`
∴ Water available in frozen form
= `1-1/5=(5-1)/5=4/5`
Water used by a man = `1/5`
Percent of water available in liquid form
= `1/5xx100` = 20%
and percent of the water available in frozen form
= `4/5xx100` = 80%
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