$100 is divided amongst A,B and C so that A may get 1/4 as much as B and C together, B may get 3/5 as much as A and C together, then the share of A is Answers
A) $ 15
B) $ 20
C) $ 25
D) $ 18
E) $ 30

Rationale: "a : ( b + c ) = 1 : 4 a ' s share = 100 * 1 / 5 = $ 20 answer is b"
Answer: B