Question
A and B can together complete a task in 18 hours. After
6 hours A leaves. B takes 36 hours to finish rest of the task. How many hours would A have taken to do the task if he worked alone?Solution
Let the total number of units of work =108 A and B can do in 18 hours so 108/18 =6 units each hour they both can do 6 units For 6 hours they both worked and so 36 units is done so 108-36=72 units of work is done by B alone in 36 hours I.e 72/36 = 2 units per day Therefore a+b=6 a=6-2 a=4 units per day If A worked alone then 108/4 =27 hours
And as much as 200 people (1)/have been evacuated (2)/in southern California after (3)/a freight train derailed today (4).
He who will bid the highest will get the product.
In the following questions, a sentence is divided into four parts among which three parts may or may not contain errors. It is then followed by four alt...
In the question given below, a sentence is given, divided into parts. One of the parts may contain an error. Identify the part that contains the err...I. Amid the deadlock between the Centre and the protesting farmers, (A)/ Prime Minister Narendra Modi on Saturday urging people (B)/ to read and share ...
The Supreme Court expressed concern over smog conditions in the capital caused by high pollution and decided to examine the problem and suggest...
In the home there are (A)/many sources of humidity, (B)/from clothes hung out to dry (C)/to boil water used to cook pasta (D).
In this age of despair and despondency (a) / only our rich cultural heritage can help up (b) / escape to the menacing doom (c) / No Error (d)Â
Spot the grammatical errors in the given sentence. Mark the part with error as your answer. If there is no error, mark "No error" as the answer. (Ignor...
Opportunity for employment is being created increasingly by our developing plan are implemented.
