The ratio of incomes of C and D is 3 : 4 and their expenditures is 4 : 5. If the savings of C is one fourth of his income then what is the ratio of savings of C and D?	Choose the correct choice from the following answers:
A) 11/19
B) 12/19
C) 13/19
D) 14/19
E) 15/19
According to the given condition   3x - 4y = (1/4)3x   =&gt; (3/4)3x = 4y   =&gt; 9x = 16y   =&gt; x/y = 16/9   so ratio of savings = (3x - 4y)/(4x - 5y) = (3*16 - 4*9)/(4*16 - 5*9) = 12/19   ANSWER:12/19
<result>B</result>
The ratio of incomes of C and D is 3 : 4 and their expenditures is 4 : 5. If the savings of C is one fourth of his income then what is the ratio of savings of C and D?