The road construction team plans to plant 51 flags on the side of the road. The interval between them is 2 meters. Now there are only 26 flags. How many meters should the interval be? (Flags at both ends)
修路队，计划在路的一旁插51面旗，它们的间隔是2米，现在只有26面旗，间隔应为多少米？(两端插旗)
<gadget id="calculator">51 - 1</gadget>
<output>50</output>

<gadget id="calculator">2 * 50</gadget>
<output>100</output>

<gadget id="calculator">26 - 1</gadget>
<output>25</output>

<gadget id="calculator">100 / 25</gadget>
<output>4</output>

<result>4</result>