helen1000000

helen1000000 started the topic intersecting lines in the forum Mathematics 6 years ago
If you have n nonparallel lines in a plane, how many points of intersection are there?

helen1000000 started the topic cube colours in the forum Mathematics 6 years ago
If each face of a cube is coloured with one of 6 different colours, how many ways can it be done?

helen1000000 started the topic cannon and monkey in the forum Mathematics 6 years ago
If a cannon is pointed straight at a monkey in a tree, and the monkey lets go and falls towards the ground at the same instant the cannon is fired, will the monkey be hit?

helen1000000 started the topic birth months in the forum Mathematics 6 years ago
If we have 25 people, what is the likelihood that at least one of them is born each month of the year?

helen1000000 started the topic people at table in the forum Mathematics 6 years ago
If a round table has n people sitting around it, what is the probability of person A sitting exactly k seats away from person B?