Question

Which of the following numbers are not in proportion?
(28,44,42,66); (6,7,30,36)​

Answer 1

Step-by-step explanation:

proportion means

product of means = product of extremes

(28,44,42,66)

product of means = product of extremes

44×42 =28×66

1848 = 1848 (proportion)

(6,7,30,36)

product of means = product of extremes

7×30 = 6×36

210 = 216(not proportion)