A. 15 days
B. 14 days
C. 16 days
D. 30 days
✅ The correct answer is option A. 15 days.
Raio of times taken by A and B = 1 : 3
Raio of times taken by A and B = 1 : 3
If the difference of time is 2 days, B takes 3 days. If the difference of time is 10 days.
B takes [3/2×10]=15 days