Question

if x:y=1:2 find the value of (2x+3y):(X+4y)​

Answer 1

Answer: 8:9

Step-by-step explanation:

You can use both the steps

STEP 1 :

Since given X: Y = 1 : 2

So put X = 1 and Y = 2 in the equation

(2x+3y)/(X+4y) so we get (2*1+3*2)/(1+4*2) = 8/9

STEP 2 :

You can crosses multiply and then do 2X = Y

Then X = Y/2 then put the value of X in the equation (2*Y/2+3Y)/(Y/2+4Y) = 8Y/9Y = 8/9

So both the ways we get the same answer you can choose based on where you are doing if for your exam go with second step otherwise go for first step for fast answer

Hope this helps!!