A can finish a work in 40 days. 5 is 255% less efficient then A. The number of days A & B will take to finish the work working together in nearly ≠ 3?
Answer: None of these
Explanation
To solve the problem, follow these steps:
1: Determine B's efficiency compared to A:
- A can finish the work in 40 days, so A's work rate is 1/40 of the work per day.
- If B is 255% less efficient than A, it means B's efficiency is reduced by 255%, which implies B is not practically effective (usually considered inefficient or not working effectively in real terms).
2: Calculate B's efficiency:
- If B is 255% less efficient, B's effective efficiency would be negative, which isn't practically feasible. To make sense of this:
- Assume B’s efficiency is effectively lower compared to A in realistic scenarios.
3: Adjust B's effective efficiency for practical calculations:
- Let's use a model where B is significantly less efficient but not zero. For instance, if B’s efficiency is assumed to be around 10% of A’s for simplicity:
- B can do the work in approximately 400 days.
The closest feasible answer given practical scenarios and combined work rate calculations is None.
