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Let the capacity of the tank be 420 litres {LCM (60 and 70)} Efficiency of pipe ‘A’ = 420 ÷ 60 = 7 litres/hour Efficiency of leak ‘A’ = 420 ÷ 70 = 6 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 7 – 6 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 420 ÷ 35 = 12 units/hour Efficiency of pipe ‘B’ = 12 – 1 = 11 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 420 ÷ (11 – 6) = 84 hours
Find the odd one out
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
Find out the odd letter/letters pair from the given alternatives.
Select the set in which the numbers are related in the same way as are the numbers of the following set .
( NOTE: Operations should be performe...
In the following question, select the odd number pair from the given alternatives.
Four word-pairs have been given, out of which three are alike in some manner and one is different. Select the odd one.
Three of the following four number-clusters are alike in a certain way and thus form a group. Which is the one that does not belong to that group?
Select the odd letters from the given alternatives?
Find the odd one out.
Three of the following four number-clusters are alike in a certain way and thus form a group. Which is the one that does not belong to that group?