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Start learning 50% faster. Sign in nowTo do this, if captain is selected first, then we have 15 ways of doing this. For election of vice-captain, we have 14 ways left, because 1 way is already consumed. So, the required answer = 14 × 15 = 210
‘A’ alone can complete a work in 20 days. ‘B’ alone can complete the same work in 25 days. If ‘A’ and ‘B’ work together for 7 days, then...
A, B, and C can finish a work in 12, 15, and 20 days, respectively. They all start working together, but A leaves after 4 days, and B leaves after 1 mor...
28 typists working 5 hours per day can complete a typing job in 18 days. ____ typists working _____ hours per day can complete (5/6)th part of the work ...
'Ramesh' can complete a work in 40 days. He started the work and left after 24 days from starting. The remaining work was done by 'Suresh' in 30 days. F...
A can do a piece of work in 21 days and B in 28 days. If they together work on it for 5 days, then the fraction of the work that is left is :
‘X’ can finish 50% of a job in 8 days. ‘Y’ takes 8 days more than ‘X’ to complete the entire work, and Y is 20% more efficient than ‘Z’....
A and B together can finish a task in 35 days. If B is 40% more efficient than A, how many days will it take for B alone to complete the task?
A alone can complete 40% of a work in 18 days while B takes 15 days more than A to complete it. If B and C together can complete the work in 20 days, th...
Two men A and B started a job in which A was thrice as good as B and therefore took 60 days less than B to finish the job. How many days will they take ...
‘A’ and ‘B’ can do a piece of work in 12 days and 15 days, respectively. If they started the work together and worked on it for 2 days, then fin...
