Question

1. Determine ifthe following in proportion:
(a) 8,10,16,20 (ii) 3,4,6,7​

Answer 1

Step-by-step explanation:

Q1.

(a) 8,10,16,20

Product of extremes = Product of means

8 × 20 = 10 ×16

160 = 160

Hence , 8:10 :: 16:20 are in proportion.

(b) 3,4,6,7

Product of extremes = Product of means

3 × 7 = 4 × 6

21 = 24

Hence , 3:4 :: 6:7 are not in proportion.