Question : A man, a woman, and a boy can complete a job in 3, 5, and 15 days, respectively. How many boys must assist 1 man and 1 woman to complete the job in $\frac{1}{5}$ of a day?

Option 1: 67

Option 2: 35

Option 3: 56

Option 4: 47

Question : A man, a boy, and a woman can finish work in 10 days, 15 days, and 30 days, respectively. In how many days can the work be finished by a man, a woman, and a boy when all of them work together?

Option 1: 10

Option 2: 5

Option 3: 8

Option 4: 6

Question : A, B, and C can do a job in 6 days, 12 days and 15 days respectively. After $\frac{1}{8}$th of the work is completed, C leaves the job. The rest of the work is done by A and B together. The time taken to finish the work is:

Option 1: $5\frac{5}{6}$ days

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

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

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

Question : 15 men and 21 women working together can do a job in 56 days, while 12 men and 24 women working together can do the same job in 64 days. In how many days can the same job be done by 18 men and 24 women working together?

Option 1: $47\frac{6}{19}$

Option 2: $47\frac{5}{19}$

Option 3: $47\frac{9}{19}$

Option 4: $47\frac{3}{19}$

Question : X and Y can complete a work in 9 days and 36 days, respectively. X begins to do the work and they work alternately one at a time for one day each. The whole work will be completed in:

Option 1: $12\frac{1}{2}$ days

Option 2: $14\frac{1}{4}$ days

Option 3: $13\frac{1}{3}$ days

Option 4: $15\frac{1}{5}$ days

Question : 15 men can complete a work in 25 days and 25 women can complete the same work in 40 days. If all the 15 men and 25 women work together, in how many days will the work get completed?

Option 1: $15 \frac{5}{13}$ days

Option 2: $10 \frac{5}{13}$ days

Option 3: $15 \frac{5}{12}$ days

Option 4: $15 \frac{4}{13}$ days