AMC 8 2016

The longest professional tennis match ever played lasted a total of $11$ hours and $5$ minutes. How many minutes was this? $\textbf{(A) }605 \textbf{(B) }655 \textbf{(C) }665 \textbf{(D) }1005 \textbf{(E) }1105$

In rectangle $ABCD$ , $AB=6$ and $AD=8$ . Point $M$ is the midpoint of $\overline{AD}$ . What is the area of $\triangle AMC$ ? $\textbf{(A) }12 \textbf{(B) }15 \textbf{(C) }18 \textbf{(D) }20 \textbf{(E) }24$

Four students take an exam. Three of their scores are $70, 80,$ and $90$ . If the average of their four scores is $70$ , then what is the remaining score? $\textbf{(A) }40 \textbf{(B) }50 \textbf{(C) }55 \textbf{(D) }60 \textbf{(E) }70$

When Cheenu was a boy he could run $15$ miles in $3$ hours and $30$ minutes. As an old man he can now walk $10$ miles in $4$ hours. How many minutes longer does it take for him to walk a mile now compared to when he was a boy? $\textbf{(A) }6 \textbf{(B) }10 \textbf{(C) }15 \textbf{(D) }18 \textbf{(E) }30$