The speed of a boat in still water is 11 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 200 km in upstream.
Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 11x km/hr Upstream speed of the boat = 11x – x = 10x km/hr Downstream speed of the boat = x + 11x = 12x km/hr According to the question, 12x – 10x = 20 => 2x = 20 => x = 10 Therefore, upstream speed of the boat = 10x = 100 km/hr Required time taken = 200/100 = 2 hours
Select the most appropriate option that can substitute the bold segment in the given sentence.
Oscar is the most prestigious award which is in...
Select the most appropriate meaning of the highlighted idiom.
He met his old enemy and ruined his day as he did not want to catch a tartar . ...
Select the most appropriate option to substitute the highlighted segment. If no substitution is required select 'No substitution'.
No other girl ...
Select the most appropriate option that can substitute the bold segment in the given sentence. If there is no need to substitute it, select ‘No substi...
Select the option that can be used as a one-word substitute for the given group of words.
Words written on a tombstone in the memory of the pe...
Select the most appropriate option that can substitute the underlined segment in the given sentence.
I have been waiting from two hours.
Person who insists on adherence to formal rules or literary meaning
Many kids from rich families become obnoxious due to the upbringing and lavish lifestyle that they have had.
Cater
(i) The umpteen four-wheelers and six-wheelers maintained by the institutions cater to the needs of students.
(ii) Corrianders Resta...
Select the option that can be used as a one-word substitute for the given group of words/phrase.
A phrase or words written in memory of a person ...