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A man travelled a distance of 61 kn in 9 jours. He travelled party on food at 4 kn/hr and party on bicycle at 9 km/hr. What is the distance (in km) travelled on foot?

A man travelled a distance of 61 kn in 9 jours. He travelled party on food at 4 kn/hr and party on bicycle at 9 km/hr. What is the distance (in km) travelled on foot? Correct Answer 16

মনে করি, z এর আয় = p টাকা y এর আয় = 4p টাকা xএর আয় = 2.5 × 4p টাকা = 10p টাকা .:. x: y: z = 10p: 4p: p = 10 : 4 : 1 তাহলে, z এর আয় = 110 + 4 + 1×1800 = 115×1800 = 120  টাকা

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