The correct answer is B
'A' can complete a project in 15 days but worked only the first 4 days. 'B', who is 80% as efficient as 'A', takes over. How long does 'B' need to finis...
'P' and 'Q' can finish a piece of work in 45 days and 90 days, respectively. 'P' starts working alone, and 'Q' joins after 'r' da...
Two candles of same height can burn completely in 8 hours and 12 hours respectively. If both start burning at same time at their respective constant spe...
A can complete a piece of work in 10 days. B in 15 days and C in 20 days. A and C worked together for two days and then A was replaced by B. In how many...
Person A can complete a work in 90 minutes while Person B takes 54 minutes to complete the same work. How much time will both take together to complete ...
X men can complete the piece of work in 32 days and (X + 30) men can complete the same work in 15 days less than that of days taken by X men. Find the v...
P, Q and R take 18, 15 and 10 days respectively to complete a job. Compare their efficiencies as a ratio.
‘A’ alone can complete a work in 12 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 6 days, then...
A and B together, B and C together and A and C together can complete a piece of work in 10 days, 14 days and 18 days respectively. Find the ratio...
Amit and Chetan can complete a task individually in 30 days and 45 days, respectively. Amit begins the work alone, and after 'd' ...
