Quantity I. Two pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 9 minutes?
Quantity II. Two pipes A and B can fill a tank in 24 minutes and 48 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?
Quantity I. Let B be closed after x minutes. Let total capacity of tank = LCM (12 & 16) = 48 L So A’ 1 min work = 48/12 = 4L B’s 1 min work = 48/16 = 3L So as per the question, 4×9 +3×x= 48 or 3x = 12 or x =4min Quantity II. Let B be closed after minutes. Let total capacity of tank = LCM (24 & 48) = 48 L So A’ 1 min work = 48/24 = 2L B’s 1 min work = 48/48 = 1L So as per the question, 18×2 +1×x= 48 or x = 12 Hence Quantity I < Quantity II
Select the most appropriate antonym of the given word.
SPARSE
The science of colours.
The two parties signed a lengthy _________.
It took a lot of time in making both of them come to a comfortable mutual ___________.
Not man...
Deadlock
Exhilarate
Perpetual
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A slowly moving mass or river of ice
A lady who remains unmarried
Select the most appropriate meaning of the given idiom. "Go down like a lead balloon"
In the following questions, out of the four alternatives, choose the one which best expresses the meaning of the given word as your answer.
A...
