Time and Work - Solved Examples Part 3
Questions discussed in this videoA alone cando a piece of work in 6 days and B alone can do it in 8 days. A and B undertook to do it for Rs. 3200/-. With the help of C, they completed the work in 3 days. How much is C paid of the work? a) Rs. 375 b) Rs. 400 c) Rs 600 d) Rs. 800 A tire has two punctures. The first puncture alone would make the tire flat in 9 minutes while the second alone could make it flat in 6 minutes. If air leaks at a constant rate, how long does it take for both the punctures to make the tire flat? a) 1.5 minutes b) 3.5 minutes c) 3.6 minutes d) 4.25 minutes A and B together can complete a work in 12 days. A alone can do it in 20 days. If B works for only till mid day, how long will A and B together will complete the work? a) 10 days b) 11 days c) 15 days d) 20 days Machine P can print one lakh books in 8 hours, machine Q can print the same in 10 hours whereas machine C can print it in 12 hours. All the machines started at 9 am and machine P broke down at 11 am. The remaining two machines completed the task. At approximately what time was the job completed ? a) 11:30 am b) 12:00 noon c) 12:30 pm d) 1:00pm A and B can do a piece of work in 30 days; B and C can do it in 24 days; and C and A can do it in 20 days. They all start working together and B and C leave after working for 10 days. How many more days will A take to complete the work? a) 18 days b) 10 days c) 30 days d) 36 days A task is to be done by 46 persons. Not all of them have the same capacity to do the work. Every day exactly two persons do the task. No pair of persons work together twice. Even after all possible pairs have worked once, all the persons work together for two more days to finish the task. Find the number of days in which all the persons working together can finish the complete task? a) 44 days b) 45 days c) 46 days d) 47 days
