Quiz Discussion

A is thrice as good a workman as B and so takes 60 days less than B for doing a job. The time in which they can do the job together is = ?

• 1]

  \(22\frac{1}{2}{ \text{days}}\)

• 2]

  30 days

• 3]

  45 days

• 4]

  60 days

A can do a piece of work in 12 days and B in 20 days. If they together work on it for 5 days, and remaining work is completed by C in 3 days, then in how many days can C do the same work alone ?

• 1] 10 days
• 2] 9 days
• 3] 12 days
• 4] 15 days

A can do \(\frac{1}{3}\) rd of work in 5 days and B can do the do \(\frac{2}{5}\)th of this work in 10 days. Both A and B, together can do the work in?

• 1]

  \({ \text{ 7}}\frac{3}{8}{ \text{ days}}\)

• 2]

  \({ \text{8}}\frac{4}{5}{ \text{ days}}\)

• 3]

  \({ \text{9}}\frac{3}{8}{ \text{ days}}\)

• 4]

  10 days

A can do a certain job in 12 days and B is 60% more efficient than A. The B can do the same piece of work in ?

• 1]

  \({ \text{8 days}}\)

• 2]

  \({ \text{7}}\frac{1}{2}{ \text{ days}}\)

• 3]

  \({ \text{6}}\frac{1}{4}{ \text{ days}}\)

• 4]

  \({ \text{6 days}}\)

A can do in one day three times the work done by B in one day. They together finish \(\frac{2}{5}\) of the work in 9 days. The number of days by which B can do the work alone is =?

• 1] 90 days
• 2] 120 days
• 3] 100 days
• 4] 30 days

To complete a work, A takes 50% more time than B. If together they take 18 days to complete the work, how much time shall B take to do it?

• 1] 30 days
• 2] 35 days
• 3] 40 days
• 4] 45 days

A job can be done by 3 skilled workmen in 20 days or by 5 boys in 30 days. How many days will they take if they work together ?

• 1] 8 days
• 2] 10 days
• 3] 11 days
• 4] 12 days

There was a leakage in the container of the refined oil. If 11 kg oil is leaked out per day then it would have lasted for 50 days, if the leakage was 15 kg per day, then it would have lasted for only 45 days. For how many days would the oil have lasted, if there was no leakage ant it was completely used for eating purpose?

• 1] 80 days
• 2] 72 days
• 3] 100 days
• 4] 120 days

Two workers A and B are engaged to do a work. A working alone takes 8 hours more to complete the job than if both worked together. If B worked alone, he would need 41/2 hours more to complete the job than they both working together. What time would they take to do the work together ?

• 1] 4 hours
• 2] 5 hours
• 3] 6 hours
• 4] 7 hours

25 men with 10 boys can do in 6 days as much work as 21 men with 30 boys can do in days. How many boys must help 40 men to do the same work in 4 days ?

• 1] 5
• 2] 10
• 3] 20
• 4] 40