Two people, A and B, went to the store, and they saw the same small calculator. But the money difference between A and B is 30 yuan, and the difference between B and B is 25 yuan, so they bought one together, and there is still 10 yuan left. How much is the price of this calculator.
甲、乙两人去商店，他们看中了同一款的小型计算器．但甲带的钱差30元，乙带的钱差25元，于是他们合买了一台，结果还剩下10元．这台计算器的定价是多少元．
<gadget id="calculator">30 + 25 + 10</gadget>
<output>65</output>

<result>65</result>