Question
Pipe ‘P’ and pipe ‘Q’ can fill a tank alone in
40 hours and 60 hours, respectively. If pipe ‘P’ and pipe ‘Q’ were opened together and pipe ‘P’ was closed after 20 hours, then find the time taken by pipe ‘Q’ to fill the remaining portion of the tank alone.Solution
Let the capacity of the tank be 120 units (LCM of 40 and 60) Efficiency of pipe ‘P’
= 120 ÷ 40
= 3 unit/hour Efficiency of pipe ‘Q’
= 120 ÷ 60
= 2 unit/hour Let the pipe ‘Q’ fill the remaining portion of the tank in x hours. ATQ, 20 × (3 + 2) + 2x = 120 Or, 20 × 5 + 2x = 120 Or, 100 + 2x = 120 Or, 2x = 20 Or, x = 10 Therefore, required time taken by pipe ‘Q’ = 10 hours
_________ is a significant festival of the Parsi people who practice Zoroastrianism as it marks the birth anniversary of Zoroaster.
Lord Willian Bentinck, the Governor General of India passed a law in ______ abolishing the custom of Sati.
Which of the following scheme lays special emphasis on targeting the poorest of the poor and the most vulnerable communities and their financial inclusion?
Which of the following is a biometric enabled digital service for pensioners launched by the Government of India?
Which Central Administrative Tribunal belongs to the Ministry?
Who among the following was the court poet of Alauddin Khilji who wrote the famous poem 'Hasht-Bihisht'?
What was the increase in score in the SDG India Index from 57 in 2018 to 71 in 2022-23?
Dantidurga was associated with which of the following ruling dynasties of the early medieval India?
Which type of banks are allowed to participate in government related business?
The ‘Loor Dance’ is a famous dance form of which state?
