Q : A particular job can be completed by a team of 10 men in 12 days, The same job can be completed by a team of 10 women in 6 days. How many days are needed to complete the job if the two teams work together?
(A) 4 days
(B) 6 days
(C) 9 days
(D) 18 days
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 days, altogether, work was completed?
(A) 12 days
(B) 10 days
(C) 6 days
(D) 8 days
If 10 men or 20 women or 40 children can do a piece of work in 7 days, then 5 men, 5 women and 5 children together can do half of the work in
(A) 6 days
(B) 4 days
(C) 8 days
(D) 5 days
A, B and C can do a work in 6, 12 and 24 days respectively. In what time will they finish the work while working together?
(A)
(B)
(C)
(D)
28 men can complete a piece of work in 15 days and 15 women can completed the same piece of work in 24 days. What is the respective ratio between the amount of work done by 30 men in 1 day and the amount of work done by 18 women in 1 days?
(A) 10 : 7
(B) 3 : 5
(C) 5 : 4
(D) 9 : 5
(E) Not
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