Question
A tank can be filled by a pipe in 24 minutes. There is also
a leak that can empty the full tank in 40 minutes. Determine the time to fill half the tank when both are working together.Solution
ATQ,
Let the total tank capacity be 120 litres (LCM of 24 and 40)
Efficiency of filling pipe = 120 ÷ 24 = 5 litres/minute
Efficiency of leak = 120 ÷ 40 = -3 litres/minute
Required time = (0.5 × 120) ÷ (5 - 3) = 30 minutes
The figures given below show the sequence of folding a piece of paper and the method of cutting the folded paper. What will the paper look like when it ...
If ‘+’ means ‘–’, ‘–’ means ‘×’, ‘×’ means ‘÷’, ‘÷’ means ‘+’, then what will come in place of the question mark...
In a certain code language, “FAMOUS” is written as “AFOMSU”, and “FINGER” is written as “IFGNRE”. How will “INVEST” be written in t...
Arrange the given words in the sequence in which they occur in the dictionary.
1. Telephone
2. Teleworker
3. Tendency
4.Temp...
Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term is related to the th...
Select the figure that will come next in the following figure series.
i) sitting on the third position on the right side of the F, A is sitting in the second position on the left side.
ii) C is either sitting in ...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Select the option figure which is embedded in the given figure (Rotation is NOT allowed).
Pointing to a man, Rocky (a man) said, “He is the father of the daughter of my daughter-in-law.” How Rocky is related to that man?
Relevant for Exams:
