AMC 12 2006a Problem 3

The ratio of Mary's age to Alice's age is $3:5$ . Alice is $30$ years old. How old is Mary?

$\mathrm{(A) \ } 15 \mathrm{(B) \ } 18 \mathrm{(C) \ } 20 \mathrm{(D) \ } 24 \mathrm{(E) \ } 50$

Dataset text AMC 12 2000 to 2025. Quoted with source.

Show the answer

Solutions

No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.