# A and B together can finish a piece of work in 12 days. If ‘A’ alone can finish the same work in 20 days, in how many days B alone can finish it?

Let the number of days taken by B to finish the work be x.

Number of days taken by A to finish the work = 20.

Number of days taken by A and B together = 12.

According to the given condition,

(Transposing to RHS)

(LCM of 12 and 20 is 60)

x = 30

B alone can finish the work in 30 days.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Applications of Linear Equations in One Variable37 mins
Making Equations Simple41 mins
NCERT | Imp. Questions on Solutions of Linear Equations in One Variable39 mins
NCERT | Linear Equations in One Variable44 mins
NCERT | Solving Imp. Qs. Related to Ages49 mins
Solution of Linear Equation34 mins
Foundation | Cracking Previous Years IMO Questions42 mins
Champ Quiz | Linear Equation in One Variable44 mins
Linear Equation in One Variable46 mins
Genius Quiz | Solutions of Linear equation in One Variable26 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses