What is the compound interest (in Rs.) on a sum of Rs. 46,000 for \(2\frac{2}{5}\) years at 15% per annum, interest being compounded annually (nearest to a Rs.)?
P and Q completed a work together and were paid ₹1,080 and ₹1,440, respectively. If P can do the entire work in 20 days, how many days did they take to complete the work together?
Three men do as much work as 4 boys do and the 4 boys can together complete work in 21 days. In how many days will 9 men and 2 boys complete the same work?