Question
βAβ alone can complete a work in 50 hours. βAβ
started the work alone and left after working on it for 30 hours. If βBβ completed the rest of the work in 20 hours then find the time taken by βAβ and βBβ together to complete the whole work.Solution
Let the total work = 280 units Then, efficiency of βAβ = (280/50) = 5.6 units/hour Work completed by βAβ alone in 30 hours = 5.6 Γ 30 = 168 units Remaining work = 280 β 168 = 112 units So, efficiency of βBβ = 112/20 = 5.6 units/hour Therefore, combined efficiency of βAβ and βBβ = 5.6 + 5.6 = 11.2 units/hour So, time taken by βAβ and βBβ together to complete the work = (280/11.2) = 25 hours
- What was the industrial output growth of India in January, as per NSO data?
Which coal mining company is planning to set up a 2,400 MW coal-based plant in Odisha that will be set up at an investment of Rs 19,422 crore ?
In which district of Rajasthan "Maru Mahotsav" is organized?
Kyaukphyu SEZ and deep sea port, that was recently in news, is located in which country?
Under Indiaβs G 20 Presidency, nine countries have been invited to be the βguest countriesβ, which of the following is not a part of it?
What significant achievement did Tristan Stubbs accomplish in South African cricket?
Consider the following statements about the Bharat Centre of Olympic Research and Education (BCORE):
1. BCORE was inaugurated at Rashtriya Raks...
How much did the NRI deposits grow between April and August 2024?
The International Monetary Fund (IMF) recently revised India's GDP growth forecast for fiscal year 2024/25 to 6.8%, up from an earlier projection of X %.?
What is the primary focus of the 7th Session of the International Solar Alliance (ISA) Assembly held in New Delhi?