Problem 1 Paper What is the value of 2(0(19))+((20)1)9 ?2^{\left(0^{\left(1^9\right)}\right)}+\left(\left(2^0\right)^1\right)^9\,?2(0(19))+((20)1)9? (A) 0(B) 1(C) 2(D) 3(E) 4\textbf{(A) } 0 \textbf{(B) } 1 \textbf{(C) } 2 \textbf{(D) } 3 \textbf{(E) } 4(A) 0(B) 1(C) 2(D) 3(E) 4 Answer, solutions and source
Problem 2 Paper What is the hundreds digit of (20!−15!)?(20!-15!)?(20!−15!)? (A) 0(B) 1(C) 2(D) 4(E) 5\textbf{(A) } 0 \textbf{(B) } 1 \textbf{(C) } 2 \textbf{(D) } 4 \textbf{(E) } 5(A) 0(B) 1(C) 2(D) 4(E) 5 Answer, solutions and source