Three students, A, B, and C, did math problems, and A did 40% of the total. He did 5 more questions than B, and C did the same amount as B. How many questions did A, B, and C have in total?
甲乙丙三个同学做数学题，甲做了总数的40%．比乙多做了5道，丙做的与乙同样多，甲乙丙共做了多少道题？
<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) / 2</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(2/5) - (3/10)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">5 / (1/10)</gadget>
<output>50</output>

<result>50</result>