Need help in forming equations for these two apparently simple scenarios!
Three eights of the class got sick. Three more students got sick, leaving only half the class at school. How many students were not sick?
(possible choice of answer: 8, 12, 16, 20)
3/4 of a jar of lollies are multi-coloured and the rest are black. 6 of the black lollies are eaten and now there is 6/7 of the jar of multicoloured lollies. How many black lollies were in the jar at the start?
(possible answers: 6, 8, 10, 12)