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MGSM / John huendesha kwa saa 3 kwa kasi ya maili 60 kwa kila saa na kisha kugeuka kwa…

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John huendesha kwa saa 3 kwa kasi ya maili 60 kwa kila saa na kisha kugeuka kwa sababu anagundua kuwa amesahau kitu muhimu sana nyumbani. Anajaribu kurudi nyumbani kwa saa 4 lakini anatumia saa 2 za kwanza katika trafiki isiyosonga. Anatumia nusu saa inayofuata akiendesha kwa kasi ya maili 30 kwa kila saa, kabla ya kuweza kuendesha muda unaosalia kwa saa 4 katika kasi ya maili 80 kwa saa. Yuko umbali upi kutoka nyumbani mwishoni mwa saa hizo 4?

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