Starting from 10.15 kilometers away from the forest garden, plant trees along the road along the forward direction, plant a cypress tree every 50 meters, put the saplings in the forest garden, and send saplings to each tree planting point by a car from the forest garden , only 4 saplings can be delivered each time. After delivering 12 saplings, the car returns to the forest garden. Ask how many kilograms of fuel the car consumes at least? (It is known that the car consumes 2 kilograms of fuel per 10 kilometers)
从离林园10.15千米处开始，沿着前进方向在马路一旁栽树，每隔50米栽一棵柏树，树苗放在林园内，一辆汽车从林园出发给每个植树点送树苗，每次只能送4棵，送完12棵树苗后，汽车返回林园．问汽车至少耗油多少千克？(已知汽车每10千米耗油2千克)
<gadget id="calculator">10.15 * 1_000</gadget>
<output>10_150</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">50 * 3</gadget>
<output>150</output>

<gadget id="calculator">10_150 + 150</gadget>
<output>10_300</output>

<gadget id="calculator">10_300 * 2</gadget>
<output>20_600</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">50 * 7</gadget>
<output>350</output>

<gadget id="calculator">10_150 + 350</gadget>
<output>10_500</output>

<gadget id="calculator">10_500 * 2</gadget>
<output>21_000</output>

<gadget id="calculator">12 - 1</gadget>
<output>11</output>

<gadget id="calculator">50 * 11</gadget>
<output>550</output>

<gadget id="calculator">10_150 + 550</gadget>
<output>10_700</output>

<gadget id="calculator">10_700 * 2</gadget>
<output>21_400</output>

<gadget id="calculator">20_600 + 21_000 + 21_400</gadget>
<output>63_000</output>

<gadget id="calculator">63_000 / 1_000 / 10</gadget>
<output>63/10 = around 6.3</output>

<gadget id="calculator">(63/10) * 2</gadget>
<output>63/5 = around 12.6</output>

<result>63/5 = around 12.6</result>