The quotient of a number divided by 3 is 8, and the remainder is 1. What is the number?
一个数除以3商是8，余数数1，这个数是多少．
<gadget id="calculator">8 * 3</gadget>
<output>24</output>

<gadget id="calculator">24 + 1</gadget>
<output>25</output>

<result>25</result>