A is less efficient than who can do the same work in less time than . If and B together can complete work in 12 days, then in how many days work can be completed by and together ?
A is less efficient than who can do the same work in less time than . If and B together can complete work in 12 days, then in how many days work can be completed by and together ?
Solution
✅ Correct Option: 3
- Given:
A is less efficient than B:
B does work in less time than C: or
A and B complete work in days
- Step 1: Calculate A and B's combined efficiency
Let total work be units
Work done by A and B in 12 days = units
Efficiency of units/day
Combined efficiency:
Therefore:
units/day
units/day
- Step 2: Calculate B and C's combined efficiency
units/day
- Step 3: Time for work by B and C
Time = days