Question
A boat can cover 180 km in downstream in 18 hours and
125 km in upstream in 5 hours. Find the distance travelled by the boat in still water in 10 hours.Solution
Downstream speed of the boat = 180/18 = 10 km/hr Upstream speed of the boat = 125/5 = 25 km/hr Speed of boat in still water = (10 + 25)/2 = 17.5 km/hr Distance travelled by the boat in still water in 10 hours = 17.5 × 10 = 175 km
A person walks 20 km South. Then he turns East and walks 15 km, then he turns to its left and walks 10 km, then he turns and walks 15 km towards West. ...
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Select the letter cluster from among the given option that can replace the question mark (?) in the following series.
GPD, JTA, MXX, PBU, ?
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What is the position of R with respect to T?
A person walks 4 m from point A towards east to reach point B and he turns to his right and walks 5 m to reach point C. Again he turns to his left and w...
what is the difference between the sum of distance of HI+IG and DK+ID?
Statement:
P < M ≤ Y = X; U > A =C; P < C = O > E
Conclusions:
I). Â Y > C
II). Â X < E
...If Y # & F then Y is in with direction with respect to E ?
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