Latest CTS Aptitude Question SOLUTION: A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min. he tells his father that his hat

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(#M40007157) CTS General Ability question distance problem Keep an EYE

A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his father falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn round and are able to pick the hat at the point from where they began boating after 5min. Tell the speed of river?

Asked In CTS (12 years ago)

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Sruthi karuturi  (10 years ago)

Let speed of boat be V & strean be U
In return downstream they travelled with speed of V+U for 5 min (1/12 hr)
and covered a distance equal to that travelled in upstream with speed V-U for 5 min (1/12 hr) plus 1 mile travelled.
so (V+U) *1/12 = (V-U) *1/12 +1
Hence U =6 mph

Is this solution Helpfull? Yes (13) | No (1)  

Ponnarasi S  (10 years ago)

The hat fallen after travelling one mile and after that they
travelled for (5MIN.)
so that hat travelled down stream for one mile and they
collected the hat after 5mins of travel down stream. So the
total time they spent after losing hat is 10 minutes.In this
10 minutes the hat exactly traveled 1 mile(i.e with river
speed). So its very clear----> the river speed is 6miles/hour.

Is this solution Helpfull? Yes (8) | No (2)  

Lakshmi  (10 years ago)

can u explain plzzzz @ponnarasi

Is this solution Helpfull? Yes (3) | No   

Amit  (12 years ago)

Cap fell here

A-------------->B----------------->C Upstream-------->
1mile
-----5 min--------

A

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