Question

1.Check weather the following quantities form a proportion or not:
I) 6,12,8,16
ii) 7,21,3,9
iii) 5,25,16,80 ​

Answer 1

Step-by-step explanation:

(i) 6,12,8,16

=> Product of means = Product of extremes

=> 12×8 = 6×16

=> 96 = 96

So,these are in proportion.

(ii) 7,21,3,9

=> Product of means = Product of extremes

=> 21×3 = 7×9

=> 63 = 63

So,these are in proportion.

(iii) 5,25,16,80

=> Product of means = Product of extremes

=> 25×16 = 80×5

=> 400 = 400

So,these are in proportion.