Question
The speed of a boat in still water is 10 times the speed
of the stream. If the difference between the upstream and downstream speed of the boats is 20 km/hr, then find the time taken by the boat to travel 180 km in upstream.Solution
Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 10x km/hr Upstream speed of the boat = 10x – x = 9x km/hr Downstream speed of the boat = x + 10x = 11x km/hr According to the question, 11x – 9x = 20 => 2x = 20 => x = 10 Therefore, upstream speed of the boat = 9x = 90 km/hr Required time taken = 180/90 = 2 hours
In the following question, select the odd word from the given alternatives.
Select the letter cluster which does not belong to the same group from the given alternatives.
Find the odd one out.
Statement:
Only a few Gold are Silver
No Gold are Diamond
Conclusion:
I. Some Silver are not DiamondÂ
II. Som...
Four words have been given, out of which three are alike in some manner and one is different. Select the odd word.
Find the odd one out from the given alternatives.
The question contains pairs of words that are related to each other in a certain way. Three of the following four word-pairs are alike as these have the...
Select the letter cluster which does not belong to the same group from the given alternatives.Â
Four of the following are alike in a certain way, and one is different. Select the one that is different.
(Note: The words must be considered as m...Three of the following four words are alike in a certain way and one is different. Pick the odd one out .
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