Question
Pipe ‘A’ can fill a tank in 25 hours while pipe
‘B’ takes 30 hours to empty it. Pipe ‘A’ is opened alone when the tank was empty and after 12 hours pipe ‘B’ is also opened. In how much time will the tank get filled completely?Solution
Let the total capacity of the tank be 150 units Efficiency of pipe ‘A’ = 150/25 = 6 units/hour Efficiency of pipe ‘B’ = 150/30 = 5 units/hour Tank filled in 12 hours = 12 × 6 = 72 units Therefore, required time taken to fill the remaining tank = (150 – 72)/(6 – 5) = 78 hours Therefore, total time taken = 12 + 78 = 90 hours
Current Union Minister of Social Justice and Empowerment is:
Consider the following statements:
1. Shah Shuja exempted the East India Company from the usual customs duty of 4½% in return for an annual paym...
An optical fibre works on the principle/theory of?
Which site was recently inscribed as India's 43rd World Heritage Site and the first cultural heritage of North East India in the UNESCO list?
Who founded the city of Amritsar?
Match List-I with List-II and choose the correct answer with the help of given codes:
The "Sultan Azlan Shah Cup" is related to which sport?
The thirty-first meeting of the Monetary Policy Committee (MPC), constituted under section 45ZB of the Reserve Bank of India Act, 1934, will be held from?
What percentage of ₹2,000 denomination notes had been returned following the RBI's decision to withdraw them in May 2023?
Durand Cup is associated with the sport of football in India?
Relevant for Exams:
