Question : Ketan and Kunal can complete a job together in 7 days. Kunal is $\frac{7}{4}$ times as efficient as Ketan. In how many days can Kunal alone complete the job?

Option 1: 12 days

Option 2: 14 days

Option 3: 10 days

Option 4: 11 days

Question : Rahul can complete his work in 7 days and Raj can complete the work in 4 days. How many total days will they take to complete the work together?

Option 1: $\frac{14}{11}$ days

Option 2: $\frac{15}{11}$ days

Option 3: $\frac{28}{13}$ days

Option 4: $\frac{28}{11}$ days

Question : A alone can do a work in 4 days, which B alone can do in 6 days. In how many days they together can do it?

Option 1: $\frac{7}{12}$

Option 2: $\frac{12}{7}$

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

Option 4: $\frac{5}{12}$

Question : A alone can complete a work in 16 days and B alone can complete the same work in 96 days. In how many days both A and B together can complete the same work?

Option 1: $\frac{88}{13}$ days

Option 2: $\frac{96}{7}$ days

Option 3: $\frac{96}{13}$ days

Option 4: $\frac{88}{14}$ days

Question : Anil is 12.5% more efficient than Sachin. If Sachin alone can finish a work in 10 days, then in how many days will Anil alone finish the same work?

Option 1: $\frac{80}{7}$ days

Option 2: $\frac{70}{9}$ days

Option 3: $\frac{80}{9}$ days

Option 4: $\frac{70}{11}$ days

Question : A can do a work in 6 days, which B alone can do in 8 days. In how many days they together can do it?

Option 1: $\frac{24}{7}$ days

Option 2: $\frac{25}{7}$ days

Option 3: $\frac{27}{4}$ days

Option 4: $\frac{22}{3}$ days