Let the distance be ‘D’ km According to the question, Downstream speed x + y = d/10 or d = 10 (x+y) .......... (i) Upstream speed x-y = d/15 or d = 15(x-y) ........... (ii) Comparing (i) & (ii) 10(x+y) = 15(x-y) 2(x+y) = 3(x-y) 2x + 2y = 3x - 3y x = 5y Hence, y = Speed of the current = 9 km/hour. Speed of boat, x = 5 × 9 = 45 km/hr
I used(A)/ a pair of black trousers(B)/ for a week.(C)
Given below are four sentences, out of which one sentence is grammatically incorrect. Choose the option which points out the grammatically incorrect sen...
Half of the bottom two quintiles go into debt or sell their assets, but only third of the top quintiles do.
Each question in this portion has a sentence with three parts (a), (b) and (c). Read each sentence to find out whether there is any error in a...
In the following questions each sentence is divided into four parts. Read each sentence to find out if there is any error in it. The error, if any, wil...
He explained that the pillars of tribalism (1)/ that humans rely on for security would always (2)/ counter any significant culture or social change. (3)...
In the following questions, four words have been given out of which one of them is wrongly spelt. Identify that incorrect word and mark it as your answ...
It is the facts that she did not exhaust all the procedural avenues before her that has left her open to charges that her ruling has a political ...
The given sentence has been broken up into four different parts. The error, if any, will be in one or more parts of the sentence. Select the option whi...
The boss had asked her to do the work on an urgent basis , but she put in the work and left.
