Question
A work can be completed by ‘A’ and ‘B’, alone in
15 days and 10 days, respectively. Find the number of days taken by ‘C’ to complete the same work alone if ‘A’, ‘B’ and ‘C’ together can complete the whole work in 4 days.Solution
Let total work = 30 units (LCM of 15 and 10) Efficiency of ‘A’ = (30/15) = 2 units/day Efficiency of ‘B’ = (30/10) = 3 units/day Combined efficiency of ‘A’, ‘B’ and ‘C’ = (30/4) = 7.5 units/day Efficiency of ‘C’ = 7.5 – (2 + 3) = 2.5 units/day Required time taken = (30/2.5) = 12 days
Which service is mandated by the RBI to verify the beneficiary's account name before transactions by April 1, 2025?
In which Indian state was the ‘Pirul Lao Paise Pao’ campaign launched to combat forest fires?
- Who won the BAFTA Fellowship Award in 2025?
Recently England’s Leicester Cricket Ground has been named after India's legendary cricketer_____?
Which relaxation did the RBI provide in qualifying asset criteria for NBFC-MFIs?
Which organization discovered and designated the Sundargarh Natural Arch as the largest natural arch in India with the Geo Heritage badge?
Why was the Standing Committee on Statistics (SCoS) dissolved by the Union Ministry of Statistics?
What was James Anderson’s wicket tally in Tests at the time of receiving his knighthood?
Where is the headquarters of Moody’s Investors Service?
Who was appointed as the new chairperson of the National Human Rights Commission (NHRC)?
Relevant for Exams:
