Contact us
Choose a category below so we can get back to you as quickly as possible.
20+30=50(時間)1÷[(1-2050)÷20]-20=1÷[3050÷20]-20=1÷3100-20=3313-20=1313(時間)答:急行は1313時間で甲駅に到着します。
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.