Question
Pipe ‘X’ can fill a cistern in 15 hours while pipe
‘Y’ can drain the cistern in 25 hours. Both pipes are opened at the same time, but pipe ‘Y’ is shut off after 5 hours. How long will pipe ‘X’ take to fill the rest of the cistern?Solution
ATQ,
Let the total capacity of the cistern be 75 litres {LCM (15 and 25)}
Efficiency of pipe ‘X’ = (75 / 15) = 5 litres/hour
Efficiency of pipe ‘Y’ = (75 / 25) = 3 litres/hour
Water filled in 5 hours by both pipes = 5 × (5 – 3) = 10 litres
Time taken by pipe ‘X’ to fill remaining cistern = (75 – 10) / 5 = 13 hours
Choose a hot water lake from the following:
If an Atal Pension Yojana subscriber dies before reaching the age of 60, who is eligible to receive the pension benefits?
Which company launched the first multi-brand co-branded credit card in India, partnering with RuPay and Yes Bank?
Statement (A): There is found variation in the population increase pattern in India's Large Metropolitan Cities.
Reason (R): According to Census ...
Japanese researchers have proposed to use which material to eliminate space junk?
NSDL acquires ____ stake in govt's e- commerce project ONDC for Rs 10 crore.
_______ is the World’s first electronic stock market in the world.
Identify the longest national highway in India.
Identify the painting technique from Gujarat that utilizes vegetable dyes and castor oil.
The statue of Khasrapan Lokeshwar from Nalanda is related to whose reign?
