For the following questions answer them individually
The average of 12 numbers is 9. If each number is multiplied by 2 and added to 3, the average of the new set of numbers is
The perimeter of two similar triangles ABC and PQR are 36 cms and 24 cms respectively. If PQ = 10 cm then the length of AB is
ABC is a triangle If $$sin(\frac{A+B}{2})=\frac{\sqrt{3}}{2}$$, then the value of $$sin\frac{C}{2}$$ is
