For two water pipes of the same length, the first one uses (1/4) and the second uses (1/4) meters. As a result, the remaining part of the first one is shorter than the second one, because the original water pipe is shorter than the second one. how many meters long
两根长度一样的水管，第一根用去(1/4)，第二根用去(1/4)米，结果剩下部分第一根比第二根短，这是因为原来的水管比多少米长
<result>1</result>