ATQ, Tank capacity = 30 units (LCM of 15, 10, 30) Efficiency of pipe 'X' = 30 / 15 = 2 units/hour Efficiency of pipe 'Y' = 30 / 10 = 3 units/hour Efficiency of pipe 'Z' = 30 / 30 = 1 units/hour Tank filled in 6 hours = (2 + 3 - 1) × 6 = 24 units Time taken by pipes 'Y' and 'Z', together to fill the remaining part of tank = (30 - 24)/(3 - 1) = (6/2) = 3 hours Total time taken = 6 + 3 = 9 hours
How many persons are lighter than V?
Who is the second lightest among them?
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Each even digit in the number 694582 is replaced by the next higher digit and each odd digit is replaced by the previous lower digit and the digits obta...
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In a row of 10 boys, when Harish was shifted by 5 places towards the left, he became the 3rdfrom the left end. What was his earlier position ...
In a group of 5 friends, Mohit eats more than Romil and Sumit. Romil eats more than Irshaad but not more than Akshay. Sumit eats more than Akshay. Who e...
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Who is the heaviest person?
