Question
A boat can travel 72 km upstream
and 108 km downstream in 5 hours. Find the speed of the boat in still water if the ratio of the speed of the boat in upstream to the speed of the boat in downstream is 2:3 respectively.Solution
Let the speed of the boat in upstream be ‘2x’ km/h and in downstream be ‘3x’ km/h, respectively. According to the question: 
Speed of the boat in still water = (2x+3x)/2 = (5×14.4)/2 = 36 km/h.
Although I have a lot of works to do,(A)/ I am looking forward(B)/ to my vacation next month.(C)
The research note also highlighted /that in spite the sharp improvement /in economic activity, the key/ services sector is still struggling.
Surveys and anecdotal evidence (A)/of higher attendance on (B)/‘egg days’ point to the (C)/ popular of the scheme among the beneficiaries (D).
According to Indian philosophy, 1) / the body is 2) / like a piece of clothing only to be changed with time, 3) / but the soul remain the same 4...
Read each sentence to find out whether there is any error in it. The error, if any, will be in one part of the sentence. Mark the part with the error a...
National Guard teams have been sent to help overwhelmed hospitals (A)/in western New York, and Massachusetts Governor Charlie Baker issued (B)/an emerge...
In each of the following questions, a sentence is divided into four parts (A), (B), (C) and (D), One of these parts may contain an error. Identify the ...
Select the sentence that has no spelling errors.
Each sentence below is divided into five parts (a), (b), (c), (d) and (e). Find the part that contains the error and give the answer accordingly. If th...
Much of Sri Lanka’s (1)/external borrowings are (2)/though sovereign bonds (3)/in the international money market (4).
Relevant for Exams:
