X sold a toy to Y at a profit of 50% and Y sold it Z at a loss of 50%. If X purchased this toy for โน12,000, then at what price did Z purchase this toy from Y?
If an item whose marked price is โน1,000 is sold after two successive discounts of 10% and 15%, then find the price at which the item is sold.
What is the value of \(
\frac{5}{11}\text{ of }\frac{3}{7}
+ \frac{7}{11} \times \frac{55}{21}
- \frac{8}{22} \div \frac{16}{33}
\)
\(\frac{1811}{956}\)
\(\frac{1088}{927}\)
\(\frac{1029}{945}\)
\(\frac{1027}{924}\)
A sum of money, when invested at the rate of 6.25% simple interest per annum, amounts to \(\frac{11}{8}\) times of itself in 'n' years. What is the value of 'n'?