 
<translate> James yana kokarin yanke shawarar wane tafarki ne ya fi sauri don tafiya. Hanya ɗaya tana da nisan mil 20 kuma galibi tana gangarowa, don haka James zai iya rufe ta a mil 5 a awa ɗaya. Sauran hanyar tana da nisan mil 12, amma galibi tana hawa, don haka James zai iya rufe mil 3 ne kawai a kowace awa kuma dole ne ya ɗauki hutu na awa ɗaya a tsakiyar hanya. Yaya sa'o'i nawa ne mafi saurin tafiya? Bari mu yi tunani da farko. Sarkar tunani: <eng> James is trying to decide which trail is faster to hike. One trail is 20 miles and mostly downhill, so James can cover it at 5 miles per hour. The other trail is 12 miles, but it's mostly uphill, so James will only be able to cover 3 miles per hour and will have to take an hour break halfway through. How many hours faster is the fastest hike? Let's think first. Chain of thought: 