You collect baseball cards. Suppose you start out with 11. Maria takes half of one more than the number of baseball cards you have. Since you're nice, you give Peter 1 baseball card. Since his father makes baseball cards, Paul decides to triple your baseball cards. How many baseball cards do you have at the end? Choose the most appropriate option
A) 12 B) 18 C) 19 D) 20 E) 21
Solution   Start with 11 baseball cards.   Maria takes half of one more than the number of baseball cards you have. So Maria takes half of 11 + 1 which is 6,   so you're left with   11 - 6= 
<gadget id="calculator">  11 - 6</gadget>
<output>5</output>
5.   Peter takes 1 baseball card from you:  5 - 1= 
<gadget id="calculator"> 5 - 1</gadget>
<output>4</output>
4 baseball cards.   Paul triples the number of baseball cards you have: 4 Ã— 3= 12 baseball cards.   So you have 12 at the end.   Correct answer : 12
<result>A</result>
You collect baseball cards. Suppose you start out with 11. Maria takes half of one more than the number of baseball cards you have. Since you're nice, you give Peter 1 baseball card. Since his father makes baseball cards, Paul decides to triple your baseball cards. How many baseball cards do you have at the end?