When a number is divided by 60, the quotient is 15 and the remainder is 17. What is the number?
一个数除以60，商是15，余数是17，这个数是多少．
<gadget id="calculator">15 * 60</gadget>
<output>900</output>

<gadget id="calculator">900 + 17</gadget>
<output>917</output>

<result>917</result>