Question
Pipes ‘A’ and ‘B’ can fill a tank in 6 hours and
9 hours, respectively. If pipe ‘C’ is opened along with pipes ‘A’ and ‘B’, then the tank gets filled in 9 hours. Find the time taken by pipe ‘C’ to empty (1/3)th part of the same tank.Solution
Let capacity of the tank = 18 litres (lcm of 6 and 9) Efficiency of pipe ‘A’ = (18/6) = 3 litres/hour Efficiency of pipe ‘B’ = (18/9) = 2 litres/hour Efficiency of all the three pipes together = (18/9) = 2 litres/hour Efficiency of pipe ‘C’ = 2 – (3 + 2) = (-3) litre/hour {Negative sign shows that pipe ‘C’ is an outlet pipe} Required time taken = {(1/3) × 18)}/3 = 2 hours
In each of the question given below, a statement has been given with a blank. Some words or phrases have been given in the options following the statem...
- In each of the following sentences, there is a blank space. Below each such sentence, there are four options with one word each. Fill up the blank with the...
Directions: Complete the sentence with the appropriate word(s).
The historical artifact, when carefully examined, revealed details that were _...
Its no use asking them what happened because they will _______________ a story, which will be believed by everyone.
On July 12, one of the ____________ significant documents on Australia’s ties with India was released in Canberra. More than 500 pages long, the repor...
Select the most appropriate word to fill in the blank.
I ______ something burning now.
It has been ____________, for example, that a general spiral pattern will result simply from the fact that the galaxy has differential rotation; i.e., t...
In light of the recent economic downturn, it is essential for the institution to _____ its strategies and _____ its operations to remain competitive.
People these days , do not pay attention to accident victims showing an _______ behaviour , rather than ___________ for help.
North Korean troops were working under _______________on the roads on its side of the border near the west and east coasts that are likely preparations ...
Relevant for Exams:
