Question
'A' alone can finish a job in 12 days. If 'A' is twice
as efficient as 'B' who is 20% as efficient as 'C', then find the time taken to finish the job if they all work together.Solution
Let the total work be '24x' units. Efficiency of 'A' = (24x/12) = '2x' units/day Efficiency of 'B' = (2x X 0.5) = 'x' unit/day Efficiency of 'C' = (x ÷ 0.2) = '5x' units/day Time taken to finish the work when all 'A', 'B' and 'C' work together = {24x/(2x + x + 5x)} = 3 days
Health and Education Cess is levied at the rate of ___ % on the amount of income-tax plus surcharge?
What type of climate is found in North Western Europe, West Coast of North America, North of California, Southern Chile, South-eastern Australia and New...
Padma awardee Arjun Singh Dhurve is related to which of the following folk dances?
Sobha Naidu (1956 – 14 October 2020) was a highly esteemed Indian dancer known for her exceptional skills in a specific classical dance form.Which cla...
Union Minister for Social Justice and Empowerment launched the DACE Scheme from Banaras Hindu University, Varanasi, what is the acronym for E in this sc...
What was the increase in score in the SDG India Index from 57 in 2018 to 71 in 2022-23?
The Vulnerable 20 Group (V20) of Finance Ministers and the Group of Seven (G7) launched the Global Shield against Climate Risks – “an initiative fo...
Which law of Newton provides a quantitative definition of force?
According to Ramsar Convention, which of the following is World Wetlands Day?
International Day of Banks is celebrated on which day of December?
Relevant for Exams:
