B can work 3 times faster than A. They work together on a task and complete it in a day. How long does it take for B alone to complete the task?

Basic Maths Mcqs Time and Work Mcqs 18/08/2020

A. 32 hours
B. 48 hours
C. 3 days
D. 4 days

Part of task completed by A in a day = 1/x Part of task completed by B in a day = 3/x (B is thrice as efficient as A) (1/x)+(3/x) = 1 4/x = 1 x = 4 B completes 3/4th of the task in a day. He takes 4/3 days to complete the entire task. 4/3 days = (4/3*24) hours = 32 hours

Related Mcqs:

    A, B and C can do a piece of work in 20, 30 and 60 days respectively. In how many days can A do the work if he is assisted by B and C on every Third day ?
    A. 12 days B. 15 days C. 16 days D. 18 days...
    2 men and 12 women can finish a job in 4 days. 4 men and 6 women can do the same job in 5 days. Find the time taken by 1 man and 1 woman to complete the job.
    A. 30 days B. 25 days C. 24 days D. 20 days...
    If 10 bulls can plough 20 identical fields in 3 days working 10 hours a day, then in how many days can 30 bulls plough 32 same identical fields working 8 hours a day?
    A. 2 B. 8 C. 10 D. 12...
    Machine P can print one lakh books in 8 hours. Machine Q can print the same number of books in 10 hours while machine R can print the same in 12 hours. All the machines started printing at 9 A.M. Machine P is stopped at 11 A.M. and the remaining two machines complete work. Approximately at what time will the printing of one lakh books be completed?
    A. 3 pm B. 2 pm C. 1:00 pm D. 11 am...
    3 men and 7 women can complete a work in 10 days . But 4 men and 6 women need 8 days to complete the same work . In how many days will 10 women complete the same work?
    A. 50 B. 30 C. 40 D. 13...

Leave a Reply

Your email address will not be published. Required fields are marked *