Bill has d animals, 24 of which were sold at a profit of 10% each while the rest were sold at a loss of 20% each. Overall, Bill made neither a profit nor a loss. Which of the following is equal to d?	Choose the correct choice:
A) 6
B) 12
C) 18
D) 24
E) 36
Total d animals, suppose each has price of x - total price = dx   now 24 were sold at profit of 10%, making equation - - 24*1.1x   now d-24 were sold at loss of 20%, making eqn --- (d-24)*0.8x   Now he made no profit or loss so,   dx = 24*1.1x + (d-24)*0.8x   solving for d, we get d=36   Ans 36
<result>E</result>
Bill has d animals, 24 of which were sold at a profit of 10% each while the rest were sold at a loss of 20% each. Overall, Bill made neither a profit nor a loss. Which of the following is equal to d?