Question
Two inlet pipes 'A' and 'B' can fill an empty tank in 36
minutes and 48 minutes, respectively. Another outlet pipe 'C' can empty the tank in 144 minutes. If all the three pipes are opened together, then find the time taken by them to fill the tank.Solution
Let the total capacity of the tank be 144 litres (LCM of 36, 48, and 144).
Efficiency of 'A' = 144 ÷ 36 = 4 litres/minute
Efficiency of 'B' = 144 ÷ 48 = 3 litres/minute
Efficiency of 'C' = 144 ÷ 144 = -1 litre/minute
Required time = 144 ÷ (4 + 3 - 1) = 144 ÷ 6 = 24 minutes
Select the odd one out from the given alternatives.
Find the odd one out:
Four of the following five are similar in a certain way, so create a group.
Which of these is not related to this group?
Liquid, Concrete,...
Find the odd one out.
Find the one which does not belong to that group?
Three of the following four words are alike in a certain manner and one is different. Select the odd word.
The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are f...
Three of the following four letter cluster are alike in certain manner and one is dierent. Select the odd one.
Four number-pairs are given, three of which are alike in certain manner and one is different. Choose the different number-pair.
Find out the odd word/letters/number/number pair from the given alternatives.
Relevant for Exams:
