Question : Ramesh does half as much work as Parul in $\frac{4}{5}$ of the time. If together Ramesh and Parul take 24 days to complete the work, then how much time will Parul take to do it?

Option 1: 38 days

Option 2: 41 days

Option 3: 37 days

Option 4: 39 days

Question : To do a certain work, B would take time thrice as long as A and C together and C twice as long as A and B together. The three men together complete the work in 10 days. The time taken by A to complete the work separately is:

Option 1: 22 days

Option 2: 24 days

Option 3: 30 days

Option 4: 20 days

Question : A can do $\frac{4}{5}$th of a work in 20 days and B can do $\frac{3}{4}$th of the same work in 15 days. They work together for 10 days. C alone completes the remaining work in 1 day. B and C together can complete $\frac{3}{4}$th of the same work in:

Option 1: 6 days

Option 2: 8 days

Option 3: 5 days

Option 4: 4 days

Question : A can complete a work in 8 days and B can complete the same work in 11 days. How many days will they take, if both work together?

Option 1: $4 \frac{12}{17}$

Option 2: $5 \frac{12}{19}$

Option 3: $4 \frac{11}{19}$

Option 4: $4 \frac{12}{19}$

Question : A can do $\frac{7}{8}$ of work in 28 days, and B can do $\frac{5}{6}$ of the same work in 20 days. The number of days they will take to complete if they do it together is:

Option 1: $15\frac{3}{7}$ days

Option 2: $17\frac{3}{5}$ days

Option 3: $14\frac{5}{7}$ days

Option 4: $13\frac{5}{7}$ days

Question : To do a certain task X would take 3 times as long as Y and Z together, and Z would take 4 times as long as Y and X together. Three of them together can complete the task in 10 days. How much time is taken by X and Z to complete the task?

Option 1: $18 \frac{2}{9}$ days

Option 2: $20 \frac{1}{9}$ days

Option 3: $21 \frac{1}{9}$ days

Option 4: $22 \frac{2}{9}$ days