SSC CHSL Model Paper 9

Question : 33 of 100

Marks: +1, -0

A man walks half of the journey at 4 km/h by cycle does one third of journey at 12 km/h and rides the remainder journey in a horse cart at 9 km/h, thus completing thewhole journey in 6 hours and 12 minutes. The length of the journey is

36 km
39km
40 km
28 km

Validate

Solution:

Let the length of the journey =x km.
∴ Journey rides by horse cart

=x(1-1/2-1/3)=1/6x\km

Then, total time taken to complete journey

=31/5\hr

⇒

t_1+t_2+t_3=31/5

⇒

x/2×1/4+x/3×1/12+x/{6×9}=31/5

⇒

x=31/5×216/37=36.2\km≈ 36\km

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