if x:y = 1:4, then find the value of
(7x+3y):(2x+y)
Choose the correct choice from the following choices: A) 14 : 5 B) 15 : 5 C) 16 : 5 D) 19 : 6 E) none of these

Rationale: explanation : let x = 1 k and y = 4 k , so = 7 ( k ) + 3 ( 4 k ) / 2 ( k ) + 1 ( 4 k ) = 19 k / 6 k = 19 : 6 option d
Answer: D