SSC CGL Model Paper 11

Question : 56 of 100

Marks: +1, -0

A person can row a distance of 9km upstream in one hour 30 minutes and can row back to the starting point in just 45 minutes. How much time (in hours) w ill be taken to row 18km in still water ?

2h
1h 30min
1h 45min
2h 15min

Validate

Solution:

(x-y)=9/90×60=6

x+y=9/45×60=12

speed (still water )

x = 9

time

=18/9=2\h

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