(a) How many groups are there if 12 is divided into groups of:[br] (i) 3; (ii) 4; (iii) 5?[br](b) How many groups are there if 10 is divided into groups of 4?[br](c) How many groups are there if 5 is divided into groups of 3?[br](d) How many groups are there if 3 is divided into groups of 5?[br](e) How many groups are there if 2 is divided into groups of 4?[br](f) How many groups are there if 1 is divided into groups of 3?[br][br]In general, how would you calculate a ÷ b ?