Ratio of two numbers x and y is 3:7.
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)
Answer/Solution
7:12
Steps/Work
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 = C
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 = C