2000 $$g$$ of a liquid was left in a container under the Sun.<br>At first, it contains 97% water and 3% mud.<br>After a few hours, some water evaporated and the water content decreased b 30%. <hr> What is the mass of the liquid now? <br> <input min="0" type="number" id ="imp6pg110q2_1" class="lineinput" placeholder="?" />