Grade 11Algebra
Please help me to solve these problems based on permutation & combination:
[1] Number of six digit numbers which have 3 digits even and 3 digits odd. If each digit is to be usedatmost once is____
[2] 18 points are indicated on the perimer of the triangle ABC. How many triangles are there with vertices at these points?
(A) 331
(B) 408
(C) 710
(D) 711
Please explain step by step each question.
