A alone can finish a work in X days. B alone can finish the same work in X+5 days. Together, they take 6 days to complete the work. Find X

Basic Maths Mcqs Time and Work Mcqs 12/06/2021

A. 12
B. 8
C. 10
D. 9

Part of work completed by A in a day = 1/X Part of work completed by B in a day
= 1/(X+5) (1/X)+(1/(X+5)) = 1/6 (2X+5)/(X²+5X) = 1/6 X²+5X = 6(2X+5) X²-7X-30=0 Solving, X=10

Related Mcqs:

    4 men and 2 woman can complete a work in 2 days. If 2 men alone take 5 days to complete the work, find the time taken by 2 women alone to complete the work.
    A. 15 days B. 10 days C. 8 days D. 20 days...
    A alone can finish a work in 10 days and B alone can do it in 15 days. If they work together and finish, then out of a total wages of Rs.75. A will get:___________?
    A. 35 Rs. B. 40 Rs. C. 45 Rs. D. None of these...
    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...
    P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?
    A. 10 days B. 14 days C. 15 days D. 9 days...

Leave a Reply

Your email address will not be published.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