An item costs 90% of its original price. If Tk. 90 is added to the discount price, the cost of the item will be equal to its original price. What is the original price of the item?

If mx+ny=12my, then x/y+n/m= ?

If n is an integer between 0 and 100, then any of the following could (3n+3) except ---

A merchant sells a radio for Tk. 80 and thereby makes a profit of 25% of the cost. What is the ratio of cost t...

Describe the following sequence in mathematical terms : 144, 72, 36, 18, 9

If the sum of the 3 consecutive integers is 240, then the sum of the two larger integers is :

A class of 50 girls and 70 boys sponsored a party. If 40% of the girls and 50% of the boys attended the party,...