A is 40% more efficient than B. If A alone can complete a work in 15 days, in how many days can B alone complete the same work?
Options:
- A: 18 days
- B: 20 days
- C: 21 days
- D: 24 days
Related Practice Questions:
- A sum of ₹4000 is invested at compound interest for 2 years at a rate of 10% per annum. What will be the total amount at the end of 2 years?
- At what rate of simple interest per annum will a sum of money double itself in 8 years?
- The difference between the compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is ₹25. Find the sum.
- The study of living organism :
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