If ,  then find the value of ‘a’

If the average of 'm' numbers is n and that of 'n' numbers is m, then the average of (m + n) numbers is -

P and Q started a business in the ratio of 2: 3. After 2 years P left the business but Q continued. After 3 ye...

A square park is surrounded by a path of uniform width 2 meters all around it. The area of the path is 288 sq....

The area of a rectangular field is 52000 sq. meters. This rectangular area has been drawn on a map to the scal...

A circle and a rectangle have the same perimeter. The sides of the rectangle are 18 cm and 26 cm. what is the...

If 3 sides of a triangle are 6 cm, 8 cm, and 10 cm, then the altitude of the triangle, using the largest side...