A car travels from A to B at 32 kilometers per hour. After 4 hours, the remaining road is 8 kilometers less than half of the whole journey. If you switch to driving at a speed of 56 kilometers per hour, how many hours will it take to reach point B?
汽车从甲地开往乙地，每小时行32千米．4小时后，剩下的路比全程的一半少8千米，如果改用每小时56千米的速度行驶，再行几小时到达乙地？
<gadget id="calculator">32 * 4</gadget>
<output>128</output>

<gadget id="calculator">128 - 8 - 8</gadget>
<output>112</output>

<gadget id="calculator">112 / 56</gadget>
<output>2</output>

<result>2</result>