Dad drove from A to B. The car travels 75 kilometers per hour. When driving 10 kilometers beyond the midpoint, there are still 140 kilometers away from point B. How many hours will Dad have to drive to get from A to B?
爸爸开车从甲地去乙地．轿车每小时行75千米．当驾驶到超过中点10千米时，离乙地还有140千米．爸爸要行驶多少小时才能从甲地到达乙地？
<gadget id="calculator">140 + 10</gadget>
<output>150</output>

<gadget id="calculator">2 / 75</gadget>
<output>2/75 = around 0.026667</output>

<gadget id="calculator">150 * (2/75)</gadget>
<output>4</output>

<result>4</result>