Julie, Samantha and Dave ate 5416 crackers last year. Julie ate 1615 crackers. Samantha ate 6 times as many as dave. How many crackers did Samantha eat?

Answer 1

J + S + D = 5416

J = 1615

S = 6 D
so
1615 + 6 D + D = 5416

7 D = 3801

D = 543
so
S = 6 D = 3258