Let the capacity of the tank be 80 litres {LCM (16 and 20)} Efficiency of pipe ‘A’ = 80 ÷ 16 = 5 litres/hour Efficiency of leak ‘A’ = 80 ÷ 20 = 4 litres/hour Combined efficiency of pipe ‘A’ and leak ‘A’ = 5 – 4 = 1 litre/hour Combined efficiency of pipe ‘A’, ‘B’ and leak ‘A’ = 80 ÷ 8 = 10 units/hour Efficiency of pipe ‘B’ = 10 – 1 = 9 units/hour Time taken by pipe ‘B’ and leak ‘A’ to fill the tank = 80 ÷ (9 – 4) = 16 hours
Four of the following five are alike in a certain way and hence they form a group. Which one of the following does not belong to that group?
Which pair of floors correctly represents vacant floors?
Who among the following teaches ‘Chemistry’
How many person lives between the one who likes Daisy and the one who likes lotus?
who likes just before the one who has Pink?
How many boxes were there between Nestle and Galaxy chocolate box?
Which of the following plants was exhibited on Thursday?
If O is related to N and Q is related to M, then who among the following person is related to S?
Four of the following five are alike in a certain way based on the given arrangement and thus form a group. Which is the one that does not belong to tha...
Which of the following combination is correct ?