In an examination, $70\%$ of candidates passed in English, $80\%$ passed in Mathematics, and $10\%$ failed in both subjects. If $144$ candidates passed in both subjects, what is the total number of candidates?
Options:
- A: $200$
- B: $240$
- C: $250$
- D: $300$
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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