When two numbers are divided, the quotient is 4 and the remainder is 6. The sum of the dividend and the divisor is 71. What is the divisor?
两个数相除，商是4，余数是6，被除数与除数的和是71，除数是多少．
<gadget id="calculator">71 - 6</gadget>
<output>65</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">65 / 5</gadget>
<output>13</output>

<result>13</result>