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 6 hours. Find the time taken by pipe ‘C’ to empty (1/2)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 = (18/6) = 3 litres/hour Efficiency of pipe ‘C’ = 3 – (3 + 2) = (-2) litre/hour {Negative sign shows that pipe ‘C’ is an outlet pipe} Required time taken = {(1/2) × 18)}/2 = 4.5 hours
- Choose the word opposite in meaning to the bold word.
Benign Select the word with the correct spelling.
The two parties signed a lengthy _________.
It took a lot of time in making both of them come to a comfortable mutual ___________.
Not man...
Choose the word which is similar in meaning to the given word-
AUDACIOUS
Perpetual
In the following questions, choose the word opposite in meaning to the given word.
SACRED
1) The movie was
2) all ready half
3) way when we
4) reached the theatre.
5) No error
- Select the most appropriate ANTONYM of the given word.
Innocuous Mendicant
Select the option which is the antonym of the given word.
FRAIL
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