A, B, and C jointly buy a car, and A and B pay 1/4 of the total money of the other two. If A and B each pay another 30,000 yuan, then C pays 6,000 yuan less than B. How much is the car.
甲乙丙三人合资买一辆汽车，甲乙付的钱分别是其他二人总钱数的(1/4)，假如甲乙各再付3万元，那么丙比乙少付0.6万元，这辆汽车多少万元．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">3 - 0.6</gadget>
<output>2.4</output>

<gadget id="calculator">6 + 2.4</gadget>
<output>8.4</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">1 + 1 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">8.4 / (2/5)</gadget>
<output>21</output>

<result>21</result>