A seller made 10% profit after selling a product at 20% commission on list price. What is the list price of that product?
A number consists of two digits. The sum of the digits is 10. If 72 is subtracted from the number, it's digits are interchanged. Find the number.
The sum of daily income of P, Q, R is Tk. 90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?
What is the next number in the series? 5,3,1,7,3,2,9,5, -----
A boat sailing against a stream of river takes 6 hours to travel 24 kms, while sailing with the stream it takes 4 hours to travel the same distance. What is the speed of the stream?