Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.
If x : y = 1 : 3, then find the value of (7x + 3y) : (2x + y)
let x = 1k and y = 3k
= 7k + 3 × 3k 2k+1 × 3k
= 16k 5k
= 16 : 5