A sells an article which costs him Tk. 400 to B at a profit of 20%. B then sells it to C, making a profit of 10% on the price he paid to A. How much does C pay to B?
The sum of the two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is:
b.Eighteen years ago, a father was three times as old as his son. Now, the father is only twice as old as his son. then, the sum of the present ages of the son and the father is:
(17)3.5×(17)?=178
88% of 370 + 24% of 210-?= 118. What stands for question mark?
If a number x is 10% less than another number y and y is 10% more than 125, then x is equal to: