A cyclist travels for 60km at xkm/h and 180 km at ykm/h and takes 10...
A cyclist travels for 60km at xkm/h and 180 km at ykm/h and takes 10...
A cyclist travels for 60km at xkm/h and 180 km at ykm/h and takes 10 hours altogether for the journey. if the speeds are interchanged , the journey takes 8 3/2 hours.find x and y?
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