Question

Which of the following numbers are in proportion?
(a) 1:2:3:4 (b) 4:6:5:7 (c) 8:6:12:9 (d) none​

Answer 1

Answer:

No 6 8:6:12:9 it is in a correct proportion..

Answer 2

Answer:

8:6:12:9 are in proportion.

Step-by-step explanation:

the formula =product of mean=product of extreme

12 ×6=9×8

72=72

so it is proportion