David spends $350 buying his favorite dolls. If he buys only small LemonHead dolls, which are $2 cheaper than the large LemonHead dolls, he could buy 20 more dolls than if he were to buy only large LemonHead dolls. How much does a large LemonHead doll cost? Answers:
A) $5  B) $7  C) $6  D) $8  E) $9
If large doll costs $5, then he can buy   350/5= 
<gadget id="calculator">  350/5</gadget>
<output>70</output>
70 large dolls and 350/3=116 small dolls. Difference is more than 20. Discard.   If large doll costs $7, then he can buy   350/7= 
<gadget id="calculator">  350/7</gadget>
<output>50</output>
50 large dolls and   350/5= 
<gadget id="calculator">  350/5</gadget>
<output>70</output>
70 small dolls.   Difference is 20, which is we wanted.   Answer $7.
<result>B</result>
David spends $350 buying his favorite dolls. If he buys only small LemonHead dolls, which are $2 cheaper than the large LemonHead dolls, he could buy 20 more dolls than if he were to buy only large LemonHead dolls. How much does a large LemonHead doll cost?