Question

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.

Answer 1

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%