ATQ, When work is constant, ratio of efficiency is inverse of ratio of time taken. So, ratio of efficiency of 'Aditi' and 'Beena' = 5:6 So, ratio of time taken by 'Aditi' and 'Beena' to finish the work = 6:5 Time taken by 'Beena' alone to finish the work = 12 × (5/6) = 10 days And ratio of efficiency of 'Beena' and 'Chinky' = 4:5 So, ratio of time taken by 'Beena' and 'Chinky' to finish the work = 5:4 Time taken by 'Chinky' alone to finish the work = 10 × (4/5) = 8 days Let, the total work be 120 units {LCM of (8, 10 and 12) } So, efficiency of 'Aditi' = (120/12) = 10 units/day Efficiency of 'Beena' = (120/10) = 12 units/day Efficiency of 'Chinky' = (120/8) = 15 units/day Work done by 'Aditi' and 'Beena' together in 3 days = (10 + 12) × 3 = 66 units Remaining work = 120 - 66 = 54 units So, the time taken by 'Beena' and 'Chinky' together to finish the remaining work = {54/(12 + 15) } = (54/27) = 2 days
NTPC launched green hydrogen buses at Leh under which initiative?
Which Indian company recently started blending green hydrogen with natural gas for cooking purposes in Ahmedabad?
Incentives paid by the government to banks for promoting RuPay debit cards and low-value BHIM-UPI transactions will not attract _______.
Network Readiness Index 2022 report is based on their performances in four different pillars, which of the following piller is not correct?
What is the primary purpose of the integration between the e-Shram portal and the Gati Shakti portal?
Which of the following is the highest waterfall in the world?
An amount of________ crore has been released to the states from 2014-15 to 2022-23 for various activities like training, testing, setting up of CHCs, hi...
ToneTag, a voice-based commerce and payments solution provider has launched payment infrastructure named CUSP for digital payments like central bank...
Who won the FIFA Best Men’s and Women’s Player of the Year awards for 2024?
What significant step did India take in 2024 to enhance its strategic footprint in the Indian Ocean?