RRB RPF RPSF SI and CONS Model Papers 3 with solutions

Question : 34 of 120

Marks: +1, -0

A man rides at the rate of 18 km/hr, but stops for 6 mins. to change horses at the end of every 7th km. The time that he will take to cover a distance of 90 km is

6 hrs.
6 hrs. 12 min.
6 hrs. 18 min.
6 hrs 24 min.

Validate

Solution:

(b) Number of stoppages

= { 90 }/ { 7 } ≅ 12

∴ Total time

= ( { 90 }/ { 18 } )

hours

+ { 12 × 6 }/ { 60 }

minutes = 6 hours 12 minutes

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