Start learning 50% faster. Sign in now
Let the total work = 300 units Then, efficiency of ‘A’ = (300/40) = 7.5 units/hour Work completed by ‘A’ alone in 20 hours = 7.5 × 20 = 150 units Remaining work = 300 – 150 = 150 units So, efficiency of ‘B’ = 150/20 = 7.5 units/hour Therefore, combined efficiency of ‘A’ and ‘B’ = 7.5 + 7.5 = 15 units/hour So, time taken by ‘A’ and ‘B’ together to complete the work = (300/15) = 20 hours
Identify India's rank as a global silk producer.
Name the person who is the first Indian Brand Ambassador of Laureus.
Goldman Sachs in its recent Macro Outlook 2022 projects India’s GDP at _____ in calendar year 2022.
What was India’s rank in the global startup ecosystem index 2021 ?
The National Gandhi Museum is located in which city?
The Union Home Minister Amit Shah has unveiled a 120 feet tall statue of a polo player in which state?
Which of the following day is not observed on September?
In which year did Subhash Chandra Bose join the Indian National Army (INA) in Singapore?
Who achieved the distinction of becoming the first woman appointed as the Director General of Medical Services (Army)?
Which supercomputer was inaugurated by Prime Minister Narendra Modi in September 2024?