Question
A’ and ‘B’ together can complete a work in 10 days
while ‘A’ takes 18 days to complete the same work alone. If ‘C’ is 25% more efficient than ‘B’, then find the time taken by ‘C’ alone to complete the whole work.Solution
Let the total work = 90 units Efficiency of (A + B) = 90/10 = 9 units/day Efficiency of ‘A’ = 90/18 = 5 unit/day Therefore, efficiency of ‘B’ = 9 – 5 = 4 units/day Efficiency of ‘C’ = 1.25 × 4 = 5 units/day Required time taken = 90/5 = 18 days
‘A’ and ‘B’ can do a piece of work in 20 days and 25 days, respectively. They started working together but ‘A’ left after 4 days. Find the t...
Three Typists Axe, Wye and Zed working together 3 hours per day and can type 720 pages in 12 days. In a day Wye types as many pages more than Axe as Zed...
If 24 persons can finish 50% of work in 12 days in how many days 48 person can finish the complete work?
A alone can complete 50% of a work in 20 days while B takes 16 days more than A to complete it. If B and C together can complete the work in 24 days, th...
A does 55% of some work in 12 days. Later, with B’s help, she completes the remaining work in 4 days. In how many days can Be B complete the entire wo...
A’ and ‘B’ together can complete a work in 15 days while ‘A’ takes 20 days to complete the same work alone. If ‘C’ is 50% more efficient t...
Abhijeet' is 50% less efficient than 'Vivek' and can achieve 25% of the sales target in 8 days.'Chirag' takes 4 days more than 'Vivek' to achieve the ta...
A buffalo alone can plough field ‘A’ in 80 days. A Bull alone can plough the field ‘A’ in 160 days. Find the number of days taken by 2 bulls and...
‘X’ and ‘Y’ together can complete a work in 10 days, while ‘Y’ and ‘Z’ together can complete the work in 8 days. If ‘Y’ takes 12 day...
35 people working 7 hours a day take 22 days to complete a task. How many people working for 6 hours a day are needed to complete five times the given t...
Relevant for Exams:
