Question
A can complete a task 40% more efficiently in 25 days,
whereas B, with a 25% efficiency boost, can finish the same task in 21 days. They collaborated at their original efficiencies for 9 days. Now, how we can determine the time it will take for A to complete the remaining work, reverting to his original efficiency level when working alone.Solution
ATQ, Let total amount of work be 525 units Amount of work done by ‘A’ in one day (with increased efficiency) = 525/25 = 21units Original efficiency of ‘A’ = 21/1.40 = 15 units per day Amount of work done by ‘B’ in one day (with increased efficiency) = 525/21 = 25units Original efficiency of ‘B’ = 25/1.25 = 20 units per day Amount of work completed by ‘A’ and ‘B’ together in 9 days = 35 × 9 = 315 units Remaining work = 525 – 315 = 210 units Desired time = 210/15 = 14 day
Which artisan from Chhattisgarh received the National Handicrafts Award for 2023?
In which year was the World Bank established?
The Ganga Expressway inaugurated by PM Modi in Hardoi is how many kilometers long?
Which country is ranked first for cyberattacks in 2024, according to the CloudSEK report?
In July, the number of total account holders under the PMJDY reached 495.6 million, with a total outstanding of over Rs 2 trillion. Of this, _______ are...
Under which legislation were the violations by Reliance General Insurance detected during inspection?
In which Indian state is the Pench Tiger Reserve (PTR) located, recently designated as India's first Dark Sky park?
In a significant development, India is believed to have placed a funding request of around_____ in its first call with the Pandemic Fund of the World ...
Bangladesh became the first South Asian country to join which UN water governance treaty in 2025?
On which date will the President of India attend the SOAR – Skilling for AI Readiness programme?
Relevant for Exams:
