Question : Sonu can do work in 15 days, Monu can do it in 10 days, and Tipu can do it in 12 days. In how many days can Sonu, Monu, and Tipu together complete the work?
Option 1: 8 days
Option 2: 10 days
Option 3: 4 days
Option 4: 5 days
Correct Answer: 4 days
Solution :
Sonu can do work in 15 days
Monu can do it in 10 days
Tipu can do it in 12 days
Let the total work be considered as 120 units which is the multiple of 15, 10, and 12.
Sonu can do ($\frac{120}{15}$) = 8 units of work in a day.
Monu can do ($\frac{120}{10}$) = 12 units of work in a day.
Tipu can do ($\frac{120}{12}$) = 10 units of work in a day.
Hence, Sonu, Monu, and Tipu together can do (8 + 12 + 10) = 30 units of work in a day.
$\therefore$ They can complete the total work of 120 units in ($\frac{120}{30}$) = 4 days.
Hence, the correct answer is 4 days.
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates Brochure
Your Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.
