Subtract 60 from a three-digit number, divide the difference by 60, and the quotient is 3 with a remainder of 47. What is this three-digit number?
一个三位数减去60，得到的差除以60，商3余47．这个三位数是多少？
<gadget id="calculator">60 * 3</gadget>
<output>180</output>

<gadget id="calculator">180 + 47 + 60</gadget>
<output>287</output>

<result>287</result>