✨ Best Answer ✨
3kmを4.5km/hで歩く
→3/4.5=2/3(時間)=40(分)かかる
7kmを3.5km/hで歩く
→7/3.5=2(時間)かかる
∴2時間40分
✨ Best Answer ✨
3kmを4.5km/hで歩く
→3/4.5=2/3(時間)=40(分)かかる
7kmを3.5km/hで歩く
→7/3.5=2(時間)かかる
∴2時間40分
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