Two quarts containing 7⁄8 water and 1/8 formula are mixed with three quarts containing 7⁄10 water and 2⁄10 formula. Approximately what percent of the combined five-quart mixture is water?  Choices: A) 60% B) 55% C) 65% D) 77% E) 70%
7/8 of 2 quarts = 14/8 quarts of water   7/10 of 3 quarts = 21/10 quarts of water    14/8= 
<gadget id="calculator"> 14/8</gadget>
<output>7/4 = around 1.75</output>
1.75   21/10= 
<gadget id="calculator">21/10</gadget>
<output>21/10 = around 2.1</output>
2.10   Total water= 1.75 + 2.10= 
<gadget id="calculator">1.75 + 2.10</gadget>
<output>3.85</output>
3.85   Total quarts= 5   3.85/5 = 77%   Answer : 77%
<result>D</result>
Two quarts containing 7⁄8 water and 1/8 formula are mixed with three quarts containing 7⁄10 water and 2⁄10 formula. Approximately what percent of the combined five-quart mixture is water?