there are two numbers . if 20 % of the first number is added to the second number , then the second number increases to its 5 - fourth . what is the ratio of the first number to the second number ?	Choose the correct choice from the following answers
A) 2 : 9	B) 3 : 8	C) 8 : 5	D) 5 : 4	E) 7 : 3

Rationale: let the two numbers be x and y . ( 2 / 10 ) * x + y = ( 5 / 4 ) * y ( 2 / 10 ) * x = ( 1 / 4 ) * y x / y = 10 / 8 = 5 / 4 the answer is d .
Answer: D