Mary, Peter, and Lucy were picking chestnuts. Mary picked twice as much chestnuts than Peter. Lucy picked 2 kg more than Peter. Together the three of them picked 26 kg of chestnuts. How many kilograms did Mary pick?	Choose the correct choice from the following choices.
A) 12 B) 24 C) 48 D) 52 E) 37
Let x be the amount Peter picked. Then Mary and Lucy picked 2x and x+2x, respectively. So   x+2x+x+2=26   4x=24   x=6   so 2x=2*6= 
<gadget id="calculator">2*6</gadget>
<output>12</output>
12   correct answer is 12) 12
<result>A</result>
Mary, Peter, and Lucy were picking chestnuts. Mary picked twice as much chestnuts than Peter. Lucy picked 2 kg more than Peter. Together the three of them picked 26 kg of chestnuts. How many kilograms did Mary pick?