Abel had 3 times as many books as Thomas. Abel donated 1/4 of his books to charity. What was the ratio of the number of books Thomas had to the number of books Abel had in the end?
(1) 3:4
(2) 4:9
(3) 9:4
(4) 9:7
Abel had 3 times as many books as Thomas. Abel donated 1/4 of his books to charity. What was the ratio of the number of books Thomas had to the number of books Abel had in the end?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A : T = 3 : 1 or 3x : x
3x - (3x/4) = 2.25x
T : A = 1 : 2.25 or 4 / 9