CTS Company Numerical Ability Time Distance and Speed

A man and his daschund were traveling in his car. The man stops and lets the dog out. The dog starts running at 70kmph and the man follows the dog at 35kmph.After traveling a distance of 70 km, the dog returns to him How much time has elapsed between when the dog started running and
when it returned to him ?

a) 1 hr b)1 ｽ hrs c)1 hr 40 min

Read Solution (Total 1)

1 hr 20 mins

In 1 hr dog reaches 70 km point and man is left 35 km behind.
This distance of 35 km is covered by both at relative speed of 105 (75+30) kmph in 35/105 = 1/3 hrs.

so total time is 1 hr 20 mins.
12 years agoHelpfull: Yes(0) No(1)

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