On a certain day, Joey, the ice-cream seller sold his ice creams to four different kids in a manner that each of the kids purchased half of the remaining ice creams and half ice-cream more.
If we tell you that the fourth kid bought just a single ice cream, can you find out how many ice creams were sold by Joey that day?
Select:
A) 15  B) 20  C) 22  D) 12  E) 8
A   Joey sold 15 ice creams that day.   The fourth kid bought a single ice cream. Therefore, we have the following equation:   Total - (Total / 2 + 1/2) = 1   Solving it, we get the total as 3.   Let's work this method till we reach the first kid.   The first kid bought 15 / 2 + 1/2= 
<gadget id="calculator">15 / 2 + 1/2</gadget>
<output>8</output>
8 (leaving 7)   The second kid bought  7 / 2 + 1/2= 
<gadget id="calculator"> 7 / 2 + 1/2</gadget>
<output>4</output>
4 (leaving 3)   The third kid bought 3 / 2 + 1/2= 
<gadget id="calculator">3 / 2 + 1/2</gadget>
<output>2</output>
2 (leaving 1)   The fourth kid bought  1 / 2 + 1/2= 
<gadget id="calculator"> 1 / 2 + 1/2</gadget>
<output>1</output>
1   15dding all of them together, we get    8 + 4 + 2 + 1= 
<gadget id="calculator"> 8 + 4 + 2 + 1</gadget>
<output>15</output>
15.
<result>A</result>
On a certain day, Joey, the ice-cream seller sold his ice creams to four different kids in a manner that each of the kids purchased half of the remaining ice creams and half ice-cream more.
If we tell you that the fourth kid bought just a single ice cream, can you find out how many ice creams were sold by Joey that day?