Question

a=1/2 b and b=1/2 c then a:b:c

Answer 1

a = 1/2b

b = 2a .

Also,

b = 1/2c

c = 2b = 2 (2a) = 4a


Now, a : b : c = a : 2a : 4a = 1 : 2 :4

Answer 2

Hey!

a=1/2b

then,
b= 2a

b=1/2c

then,
c=2b
c= 2×2a=4a [b=2a]

then,
a:b:c=?
a:2a:4a
= 1:2:4

Hope it helps...!!!