Aparna cuts a cake into two halves and cuts one-half into smaller pieces of equal size. Each of the small pieces is twenty grams in weight. If she has seven pieces of the cake in all with her, how heavy was the original cake?	Choose the correct choice from the following answers.
A) 140 grams  B) 280 grams  C) 240 grams  D) 120 grams  E) None of these
one cake =1/2 + 1/2   1/2------6 pieces   total pieces = (1/2)cake +(6 pieces of 1/2) = 7 pieces   then 6 small picese weight = half piece cake   So 2*(6*20)= 
<gadget id="calculator">2*(6*20)</gadget>
<output>240</output>
240   ANSWER:240 grams
<result>C</result>
Aparna cuts a cake into two halves and cuts one-half into smaller pieces of equal size. Each of the small pieces is twenty grams in weight. If she has seven pieces of the cake in all with her, how heavy was the original cake?