MathDB

1

Part of 2012 AMC 10

Problems(2)

Frosting Cupcakes

Source: 2012 AMC10A Problem #1

2/8/2012
Cagney can frost a cupcake every 2020 seconds and Lacey can frost a cupcake every 3030 seconds. Working together, how many cupcakes can they frost in 55 minutes?
<spanclass=′latex−bold′>(A)</span> 10<spanclass=′latex−bold′>(B)</span> 15<spanclass=′latex−bold′>(C)</span> 20<spanclass=′latex−bold′>(D)</span> 25<spanclass=′latex−bold′>(E)</span> 30 <span class='latex-bold'>(A)</span>\ 10 \qquad<span class='latex-bold'>(B)</span>\ 15 \qquad<span class='latex-bold'>(C)</span>\ 20 \qquad<span class='latex-bold'>(D)</span>\ 25 \qquad<span class='latex-bold'>(E)</span>\ 30
AMCAMC 12AMC 12 AAMC 10
Rabbits and Students

Source: 2012 AMC 12/10 B #1

2/23/2012
Each third-grade classroom at Pearl Creek Elementary has 1818 students and 22 pet rabbits. How many more students than rabbits are there in all 44 of the third-grade classrooms?
<spanclass=′latex−bold′>(A)</span> 48<spanclass=′latex−bold′>(B)</span> 56<spanclass=′latex−bold′>(C)</span> 64<spanclass=′latex−bold′>(D)</span> 72<spanclass=′latex−bold′>(E)</span> 80{{ <span class='latex-bold'>(A)</span>\ 48\qquad<span class='latex-bold'>(B)</span>\ 56\qquad<span class='latex-bold'>(C)</span>\ 64\qquad<span class='latex-bold'>(D)</span>\ 72}\qquad<span class='latex-bold'>(E)</span>\ 80}
AMC