Question : Three people A, B, and C worked together and finished a work in 9 days. If A alone can finish the same work in 18 days, and B alone in 30 days, then the number of days C alone will take is:

Option 1: 36 days

Option 2: 45 days

Option 3: 40 days

Option 4: 54 days

Question : A and B can finish a work together in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days can A alone finish the job?

Option 1: 50 days

Option 2: 60 days

Option 3: 48 days

Option 4: 54 days

Question : A can finish a work in 15 days, B can finish the same work in 25 days. They work together for 5 days. The rest of the work is finished by A and C in 4 days. Then C alone can finish the work in:

Option 1: 18 days

Option 2: 24 days

Option 3: 20 days

Option 4: 21 days

Question : A, B, and C together can finish a piece of work in 20 days. A alone can finish the work in 40 days. What part of the work B and C together can finish in a day?

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

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

Option 3: $\frac{1}{10}$

Option 4: $\frac{1}{40}$

Question : Ram can complete a piece of work in 18 days, Reena can complete the same work in 12 days, and with the help of Shyam, they finish the same work in 6 days. In how many days can Shyam alone complete the same work?

Option 1: 42 days

Option 2: 36 days

Option 3: 30 days

Option 4: 24 days

Question : A alone can make a table in 30 days while B alone can make it in 15 days. B started work alone and worked for 8 days. In how many days A alone can finish the remaining work?

Option 1: 14 days

Option 2: 10 days

Option 3: 12 days

Option 4: 15 days