A is thrice as good a workman as B and therefore is able to finish a job in 40 days less than B. Working together, they can do it in:
Options:
- A: 12 days
- B: 15 days
- C: 18 days
- D: 20 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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