how many ways 3 friends ram ,rajat and rupesh having 6 one rupee coins, 7 one rupee coins ,8 one rupee coins respectively donate 10 rupees collectively.
In how many ways the corners of a square be colored using four colors?
1. If repeat of the colors is allowed.
2. If repeat of the colors is not allowed.
If you have sticks which measure 1, 2, 3, 4, 5, 6, 7, 8 and 9 cm (one of each). How many different triangles can you make using three of the sticks?