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A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days?

Options

A : 9 days

B : 11 days

C : 13 days

D : 13 days

A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in

Options

A : 8 days

B : 13 days

C : 9 days

D : 8 days

Ravi and Kumar are working on an assignment. Ravi takes 6 hours to type 32 pages on a computer, while Kumar takes 5 hours to type 40 pages. How much time will they take, working together on two differ

Options

A : 7 hours 15 minutes

B : 8 hours 15 minutes

C : 7 hours 30 minutes

D : 8 hours 15 minutes

A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in

Options

A : 4 days

B : 8 days

C : 6 days

D : 6 days

X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last?

Options

A : 20 days

B : 14 days

C : 10 days

D : 10 days

A and B can do a job together in 7 days. A is 13/4 times as efficient as B. The same job can be done by A alone in

Options

A : (A's 1 day's work) : (B's 1 day's work) = 7/4 : 1   =   7 : 4.

B : Let A's and B's 1 day's work be 7x and 4x respectively.

C : Then, 7x + 4x = 1/7     =>     11x = 1/7     =>     x = 1/77 .

D : (A's 1 day's work) : (B's 1 day's work) = 7/4 : 1   =   7 : 4.

X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work?

Options

A : 40/3 days

B : 27 days

C : 33 days

D : 40/3 days

A and B complete a work in 6 days. A alone can do it in 10 days. If both together can do the work in how many days?

Options

A : 3.75 days

B : 4 days

C : 5 days

D : 3.75 days

A and B together can do a piece of work in 8 days. If A alone can do the same work in 12 days, then B alone can do the same work in?

Options

A : 20 days

B : 16 days

C : 24 days

D : 24 days

A can do a piece of work in 4 days. B can do it in 5 days. With the assistance of C they completed the work in 2 days. Find in how many days can C alone do it?

Options

A : 10 days

B : 20 days

C : 5 days

D : 20 days

Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?

Options

A : 2:3

B : 4:3

C : 3:4

D : 4:3

A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone.

Options

A : 2 days

B : 1 ½ days

C : 3 days

D : 1 ½ days

4 men and 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

Options

A : 35

B : 40

C : 45

D : 40

A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was compl

Options

A : 12 days

B : 10 days

C : 14 days

D : 12 days

A and B can do a piece of work in 12 days and 16 days respectively. Both work for 3 days and then A goes away. Find how long will B take to complete the remaining work?

Options

A : 15 days

B : 12 days

C : 10 days

D : 9 days

Sakshi can do a piece of work in 20 days. Tanya is 25% more efficient than Sakshi. The number of days taken by Tanya to do the same piece of work is

Options

A : 4 days

B : 6 days

C : 10 days

D : 16 days

A and B can do a piece of work in 3 days, B and C in 4 days, C and A in 6 days. How long will C take to do it?

Options

A : 18 days

B : 20 days

C : 24 days

D : 24 days

A can do a piece of work in 10 days. He works at it for 4 days and then B finishes it in 9 days. In how many days can A and B together finish the work?

Options

A : 6 days

B : 8 days

C : 8 ½ days

D : 6 days

A can do a piece of work in 40 days; B can do the same in 30 days. A started alone but left the work after 10 days, then B worked at it for 10 days. C finished the remaining work in 10 days. C alone c

Options

A : 24 days

B : 30 days

C : 44 days

D : 24 days

A and B can together finish a work 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the work?

Options

A : 40 days

B : 23 days

C : 35 days

D : 40 days

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