A rope is measured by 40 folds, and the length of each fold is 26.5 meters. If it is measured by 2 folds, how much is the length of each fold.
一根绳子，按六折量，每折长26.5米，若按二折量，每折长多少．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">26.5 * 3</gadget>
<output>79.5</output>

<result>79.5</result>