Question 1 coins. By the pigeonhole principle. If 48 coins are distributed among 7 boxes, then there must be some box with at least For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac), Let S={A, B, C, D, E) How many strings contain EA can be created from the set S when repetition is not allowed? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). There was a family going to the park to let their children to play. They met a man with seven sacks, and every sack had seven cats. How many cats total? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)