A “ Happy Holiday!” greeting was exchanged exactly once between two good friends. How many “ Happy Holiday!” greetings were exchanged among five good friends ?IKMC Grade 1 - 2
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A ship was attacked by pirates. One by one they climbed a long rope ladder to get to the ship. The pirate captain was in the middle. If the captain was the eighth pirate to get on the ladder, then how many pirates were there on the ladder ?