Q221
A can do a piece of work in 6 days. B is 25% more efficient than A. How long would B alone take to finish this work ?
A.
Answer
B.
C.
D.
Answer: Option A
Solution
Answer: Option A
Solution:
| A | : | B | |
| Efficiency → | 100% | : | 125% |
| 4 | : | 5 | |
| Time | 5 | : | 4 |
| ×1.2↓ | ↓×1.2 | ||
| Actual time | 6 days | days |