Question

if X:Y = 1:3 and y:z = 4:5, find the value of ( x + Y + Z):(2x-y+5z).

Answer 1

spose the value of x =3,then put into rato
x=3,y=12 and y=12and z =15
then put the value in
(x+y+z):(2x-y+5z)
3+12+15:6-12+75
30:69
10:23