A3. On Saturday, Metod bought 15 donuts and paid 1950 SIT for them. On Monday, he had 1600 SIT with him. Since they were selling donuts at a discount that day, he got 15 donuts for 1600 SIT. How many fewer donuts would Metod have received if there were no discounts?
(A) 1
(B) 2
(C) 3
(D) 4
(E) 5
A3. If there was a discount, then 1 donut cost $\frac{1950}{15}=130$ SIT. With 1600 SIT, Metod could buy 12 donuts and have 40 SIT left. Without the discount, he would therefore get 3 fewer donuts.