Question
The ratio of the speed of boat ‘A’ in still water,
the speed of boat ‘B’ in still water and the speed of the current is 7:5:2, respectively. If the time taken by boat ‘A’ to travel (7D – 40) km downstream is equal to the time taken by boat ‘B’ to travel (D + 70) km upstream, then find the value of ‘D’.Solution
Let, the speeds of boat ‘A’ and boat ‘B’, in still water and the speed of the current be 7x km/hr, 5x km/hr and 2x km/hr, respectively. According to the question, (7D – 40)/(7x + 2x) = (D + 70)/(5x – 2x) Or, 21D – 120 = 9D + 630 Or, 12D = 750 Or, D = 62.5
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 Diamond
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.
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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