Question
'A' and 'B' alone can complete a work in 9 days and 18
days, respectively. Find the time taken by them to complete the work if they work on alternate days starting with 'A'.Solution
ATQ, Let the total work be the LCM of 9 and 18, which is 18 units. Efficiency of 'A' = 18/9=2 units/day Efficiency of 'B' = 18/18=1 unit/day If the work was started by 'A', then on the first day, work completed by 'A' = 2 units On the next day, work completed by 'B' = 1 unit Therefore, in two days, the amount of work completed by 'A' and 'B' = 2 + 1 = 3 units So, in 12 days, work completed by 'A' and 'B' = 3 × 6 = 18 units Therefore, total time taken by them to complete the work = 12 days
Which state / UT is the second largest producer of e - waste in India?
What was the penalty imposed on the Amod Nagric Co-operative Bank for KYC violations?
Recently Union Power Minister R K Singh unveiled which application for prepaid smart meters, which will facilitate consumers to recharge their account a...
Which city ranked highest among Indian cities in the 2024 Oxford Economics Global Cities Index?
Prime Minister Narendra Modi was honored with the Dr. Martin Luther King Jr. Global Peace Award for which contribution?
__________ and Federal Bank will partner with association of microfinance institutions Sa-Dhan and Delhi-based fintech solutions provider NextGen to pro...
In which sport would you commonly encounter the term "Birdie"?
DPS Flamingo Lake, recently declared a conservation reserve, is located in which Indian city?
Which companies are collaborating to deploy India’s largest quantum computer in Andhra Pradesh?
Which company has inaugurated a new center of excellence (CoE) focused on generative artificial intelligence (GenAI), in collaboration with the Indian...