Question

a man travelled 3 by 5 of his journey by rail 1 by 4 by a taxi 1 by 8 by a bus and the remaining 2 km on foot what is the length of his total journey​

Answer 1

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Let the length of total journey be x km

According to question,

$\frac{3}{5x} + \frac{1}{4x} + \frac{1}{8x} + 2 = x \\ \\ \frac{39}{40x} + 2= x \\ \\ \frac{x}{40} = 2 \\ \\ \huge \boxed {x = 80}$

Therefore, length of total journey is 80 km