Question

if 2:x :: 4:8 then x=
​

Answer 1

Step-by-step explanation:

so,

2x+4=8

Since left hand side (LHS) is equal to right hand side (RHS), subtracting the same quantity from both the sides will not change the equation.

So, 2x+4–4=8–4

or, 2x=4

Now again dividing the LHS and RHS of the above equation with the same number will leave the equation unaltered.

Therefore we have,

2x/2=4/2

or, x=2

So, the value of x is 2.

Answer 2

Answer:

4

Step-by-step explanation:

2/x=4/8

x=8×2/4

x=4

This is the required answer