There are five numbers, arranged in ascending order, the average of the first 4 numbers is 40, the average of these 5 numbers is 45, what is the largest number?
有五个数，从小到大一次排列，前4个数的平均数是40，这5个数的平均数是45，最大的数是多少？
<gadget id="calculator">45 * 5</gadget>
<output>225</output>

<gadget id="calculator">40 * 4</gadget>
<output>160</output>

<gadget id="calculator">225 - 160</gadget>
<output>65</output>

<result>65</result>