Question
Worker ‘P’ can complete a job in 30 days, and
together with ‘Q’, they can finish it in 12 days. If ‘Q’ worked alone for 15 days and then stopped, how long will ‘P’ take to finish the remaining work?Solution
Let the total work = 60 units {L.C.M of 30 and 12}
Then, efficiency of ‘P’ = 60 ÷ 30 = 2 units/day
Combined efficiency of ‘P’ and ‘Q’ = 60 ÷ 12 = 5 units/day
So, efficiency of ‘Q’ = 5 – 2 = 3 units/day
So, work done by ‘Q’ alone in 15 days = 3 × 15 = 45 units
Remaining work = 60 – 45 = 15 units
Time taken by 'P' alone to complete the remaining work = 15 ÷ 2 = 7.5 days
According to the latest available information, which bank opened the highest number of branches in the previous financial year (2022-23)?
Which king was the patron of the renowned poet Kalidasa?
Who was the author of Amuktamalyada?
The only Hindu noble at the court of Akbar to accept the Din-illahi was
Which ruler of the Chahamana dynasty made Ajmer his capital?
Which of the following features are associated with the architecture of Tughluq period? Select the correct answer using the codes given below ...
Who among the following did NOT belong to the Slave Dynasty?
The establishment of "Diwan-i-Riyasat" by Alauddin Khilji was aimed at controlling which aspect of the economy?
The main outlet for foreign trade during Akbar's reign was the port of
The battle of haldighati was fought between Maharana Pratap and Akbar in the year?
