Study Quest 05

A can do a piece of work in 10 days. B can do the same work in 15 days. In how many days will the work be completed if they work together?

• 12 days
• 7.5 days
• 6 days
• 5 days

A and B together can dive a trench in 12 days, which an alone can dive in 30 days. In how long B alone can burrow it?

• 18 days
• 19 days
• 20 days
• 21 days

A can fabricate a divider in 30 days , while B alone can assemble it in 40 days, If they construct it together and get an installment of RS. 7000, what B's offer?

A - 2000

B - 3000

C - 4000

D - 6500

• 2000
• 3000
• 4000
• 6500

A and B can do a bit of work in 12 days. B and C can do it in 15 days while C and A can do it in 20 days. In how long will they complete it cooperating? Additionally, in how long can A alone do it?

• 10 days, 30 days
• 15 days, 20 days
• 20 days, 40 days
• 10 days, 50 days

if a job is to be completed in 10 days, it requires 270 persons. If 180 persons take up the same job, they will finish it in

• 15 days
• 10 days
• 20 days
• 30 days

A and B together can complete a piece of work in 15 days and B alone is 20 days. In how many days can A alone complete the work?

• 30 days
• 60 days
• 45 days
• 75 days

A can do a bit of work in 8 days, which B alone can do in 10 days in how long . In how long both cooperating can do it?

• 40/9 days

• 5 days
• 41/9

• 42/9

A, B and C can do a piece of work in 24 days, 30 days and 40 days respectively. They began the work together but C left 4 days before the completion of the work. In how many days was the work completed?

• 11 days

• 12 days

• 13 days

• 8 days

A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

• 7/15
• 8/15
• 9/15
• 10/15

A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours. How long will B alone take to do it?

• 6 hours
• 12 hours
• 24 hours
• 8 hours