Q. A is thrice as good a workman as B, and takes 10 days less to do a piece of work than B takes. How many days will B take to complete, if he works alone?
✅ Correct Answer: (B)
15
Explanation: 1:3 3-1= 2
2= 3×10 2= 30 B can 30÷ 2 = 15 days
Explanation by: RAMAVATH KRISHNA
1:3 3-1= 2
2= 3×10 2= 30 B can 30÷ 2 = 15 days
2= 3×10 2= 30 B can 30÷ 2 = 15 days