$$(80+30)\div (4-3)=110$$ pence. 
Paul was going to buy $$4$$ servings of ice cream, but he was $$80$$ pence short. So, he bought $$3$$ servings and had $$30$$ pence left. What was the price of one serving of ice cream? 
Options:
A) $$70$$ pence 
B) $$80$$ pence 
C) $$90$$ pence 
D) $$100$$ pence 
E) 110 pence 