Dhoni spends $250 buying his favorite dolls. If he buys only small Barbie dolls, which are $5 cheaper than the large Barbie dolls, he could buy 25 more dolls than if he were to buy only large Barbie dolls. How much does a large Barbie doll cost?	Choose the correct option
A) $10.5	B) $10	C) $11	D) $12	E) $13
A is not an integer. So we start with B.   If large doll costs $10, then he can buy   250/10= 
<gadget id="calculator">  250/10</gadget>
<output>25</output>
25 large dolls and   250/5= 
<gadget id="calculator">  250/5</gadget>
<output>50</output>
50 small dolls.   Difference is 25, which is we wanted.   Answer $10.
<result>B</result>
Dhoni spends $250 buying his favorite dolls. If he buys only small Barbie dolls, which are $5 cheaper than the large Barbie dolls, he could buy 25 more dolls than if he were to buy only large Barbie dolls. How much does a large Barbie doll cost?