Question 1177520

From a tank 1/3 full of water, 21 liters loss due to leaking, 1/2 water remained.  Determine capacity of tank.

c = capacity

1/3c - 21 = .5c

.66c - 21 = .5c

Not sure if correct steps.
<pre>Tank can't be {{{1/3}}} full (less than {{{1/2}}} full), and lose 21 L to then be {{{1/2}}} full. Doesn't make sense!