Ratio of two numbers x and y is 3:7. If x is increased by 50% and y is increased by 2 then the new ratio becomes 1:2. What is the ratio 2y:(2x+6)
Choose the most appropriate option:
A) 16:15
B) 4:5
C) 7:12
D) 4:9
E) 6:5
Let:   x = 3n   y = 7n   4.5n/(7n+5) = 1/2   9n = 7n+2   n = 1   So, x =3; y=7   2y/(2x+6) = 14/12 = 7:6   Answer = 7:12
<result>C</result>
Ratio of two numbers x and y is 3:7. If x is increased by 50% and y is increased by 2 then the new ratio becomes 1:2. What is the ratio 2y:(2x+6)