Question

If y is directly proportional to x and y=12 when x=4, then find the value of x when y= 12
-1
-3
-4
-5

Answer 1

Answer:

4

if y is directly proportional to x

then y=Kx

if y=12 then x=4

so, 12=k4 , k=3

now if y=12

then 12=3x

so x =4