Question

Which of the given proportion is not true?
Answer:
A: 4:8::5:12
B: 9:3:: 3:1
C: 2:7::8:28
D: 2:5:: 10:25​

Answer 1

Answer:

(A) and (C) proportions are not true

Answer 2

Answer:

A. 4:8::5:12

Because,

$\frac{4}{8} \: is \: not \: equal \: to \: \frac{5}{12}$