Question
Pawan and Qureshi can
individually complete a certain task in 5 hours and 15 hours, respectively. Pawan begins the task at 9:00 a.m., and they work alternately for one hour each, with Pawan starting first. At what time will the task be completed?Solution
ATQ, Let total work be 15 units {LCM of 5 and 15} Efficiency of ‘Pawan’ = (15/5) = 3 units/hour Eiciency of ‘Qureshi’ = (15/15) = 1 units/hour Work done by ‘Pawan’ and ‘Qureshi’ in every 2 hours = (3 + 1) = 4 units So, work done in irst 6 hours = 4 × 3 = 12 units Remaining work = (15 – 12) = 3 units Since, ‘Pawan’ is next in line to do the work, he will finish the remaining work in (3/3) = 1 hour So, total time taken by ‘Pawan’ and ‘Qureshi’ to do the work together = 1 + 6 = 7 hours Therefore, the work will be inished at 4:00 p.m. i.e., 7 hours after ‘Pawan’ started working.
Which was the first state of India to introduce the Panchayati Raj?
Match the following:
List-1 (District) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â List-II (Year of Formation)
a) Haridwar         ...
Who was appointed as the chairman of the Expert Committee constituted by the Reserve Bank of India on August 7, 2020, to make recommendations on financi...
Which is the first State in India to have water policy?
Who wrote Animal Farm and into what category can this work be classified?
Which of the following is/are not a part of transfer payments?
1. Remittances received by people residing in India
2. Imported Petrochemic...
Who among the following leaders was known as ‘Deshbandhu’?
Which one of the following Articles of the Constitution of India prohibits employment of children in factory or mine or any other hazardous employment?
The ‘Har Ghar Jal Yojana’ was launched by the Prime Minister to provide water over _____ villages in Uttar Pradesh?
The Huttari dance, observed as an annual tradition, is a leisurely performance that takes place during the harvesting season in _____________.
