Question
Two boats X and Y start towards each other from two
places, 198 km apart. Speed of the boat X and Y in still water are 15 km/hr and 18 km/hr respectively. If X proceeds down and Y up the stream, they will meet after.Solution
Let the speed of the stream be x km/hr and both the boats meet after t hours According to the question, ⇒ (15 + x) t + (18 – x) t = 198 ⇒ 15t + 18t = 198 ⇒ 33t = 198 ⇒ t = 198/33 = 6 hours
Select the option that can be used as a one-word substitute for the given group of words.
A herd or flock of animals being driven in a body
Rogue
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Select the most appropriate option to substitute the underlined segment in the given sentence. If there is no need to substitute it, select ‘No subst...
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One who collects coins
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Words written on a tombstone in the memory of the pe...
In each of the following questions, choose the correct alternative which can be substituted for the below given word/ phrase of words.'
The fe...
Select the option that can be used as a one-word substitute for the given group of words.
A person who knows everything
Fanatical , uncultured leaders, little versed in modern science, can not give us a solution.
Abjure
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