For the following questions answer them individually
What should be the smallest integer in place of * if the number 502*693 is exactly divisible by 9?
If and b are supplementary angles find the value ofÂ
$$\frac{\tan A + \tan B}{1 - \tan A \tan B}$$
The radius of a sphere is 3 times the radius of a cylinder. If their volumes are equal, find the height of the cylinder.
If in a certain code 'COLOURED' is written as 'XDPDNAQZ', then how will 'ORDER' be written in that code?