Danny spends $360 buying his favorite dolls. If he buys only small LemonHead dolls, which are $1 cheaper than the large LemonHead dolls, he could buy 5 more dolls than if he were to buy only large LemonHead dolls. How much does a large LemonHead doll cost? Choose the correct choice.
A) $5  B) $6  C) $7.2  D) $8  E) $9
X: Price of small dolls; Y: Price of big dolls.   Y = X +1   360(1/x - 1/y) = 5   &lt;=&gt;x.y = 72   We can make trial: 9x8 = 72.   Choose ($9) y = 9.
<result>E</result>
Danny spends $360 buying his favorite dolls. If he buys only small LemonHead dolls, which are $1 cheaper than the large LemonHead dolls, he could buy 5 more dolls than if he were to buy only large LemonHead dolls. How much does a large LemonHead doll cost?