Question : A and B can finish a work in 10 days, B and C can finish it in 12 days and C and A can finish in 6 days. In how many days A alone can finish the work?

Option 1: $\frac{120}{9}$

Option 2: $12$

Option 3: $\frac{120}{11}$

Option 4: $\frac{121}{12}$

Question : A can do a piece of work in 10 days, B can do it in 12 days and C can do it in 15 days. In how many days will A, B, and C finish it, working all together?

Option 1: $6$ days

Option 2: $5\frac{1}{4}$ days

Option 3: $4\frac{4}{11}$ days

Option 4: $4$ days

Question : 10 women can do a work in 6 days and 6 men can do the same work in 5 days. If all these men and women work together, then how many days will they take to finish this work?

Option 1: $2\frac{8}{11}$

Option 2: $4\frac{6}{11}$

Option 3: $1\frac{2}{11}$

Option 4: $3\frac{4}{11}$

Question : A alone can do a work in 11 days. B alone can do the same work in 22 days. C alone can do the same work in 33 days. They work in the following manner:
Day 1: A and B work.
Day 2: B and C work.
Day 3: C and A work.
Day 4: A and B work. And so on.
In how many days will the work be completed?

Option 1: 9 days

Option 2: 12 days

Option 3: 3 days

Option 4: 6 days

Question : A can do a piece of work in 20 days and B in 15 days. With the help of C, they finish the work in 5 days. C can alone do the work in:

Option 1: 5 days

Option 2: 6 days

Option 3: 10 days

Option 4: 12 days

Question : A can do a piece of work in 8 days and B can do it in 10 days separately. How many days would it take for both A and B to finish the same work together?

Option 1: $\frac{33}{8}$

Option 2: $\frac{40}{9}$

Option 3: $\frac{41}{10}$

Option 4: $\frac{42}{11}$