The area of a triangle whose sides are of lengths 12 cms, 5 cms, and 13 cms is :

The price of a rice has increased by 60%. In order to restore to the original price, the new price must be red...

The average age of group of 10 students is 15 years. When 5 new students joined the group, the average age ris...

The value of (-11)+(-12)+(+13)+ --------(-110) is :

The ratio of the radii of two circles is 1 : 3. The ratio of their areas is :

Two numbers are in the ratio 3 : 5. If each is increased by 10, the ratio becomes 5 : 7. The numbers are :

A, B, C start a business. If A invests 3 times as much as B invests and B invests two-third of what C invests,...