Question 3 Find the number of4digit even numbers formed using the digits 0 to 5 when repetition of digits is allowed and when it is not. Zero cannot be placed in front. Repetition allowed: Blank 1 ways Repetition not allowed: Blank 2 ways Blank 1 | Add your answer l Blank2 | Add your answer l Question 4 Alan presides over a couple's therapy. In this session, there are six couples. If they have to be seated circularly, in how many ways can he assign them to their respective places if spouses are to be seated next to each other? Answer: Blank 1 ways. Blank 1 Add your