Question

2. x and y are in direct proportion. When x is 8, y is 12. Which of the following is not a possible pair:
(a) 10 and 15 (b) 2 and 3 (c) 6 and 9 (d) 15 and 20

Answer 1

Answer:

(d) 15 and 20

Step-by-step explanation:

x:y = 8:12

Lowest form of 8:12 = 2:3

Lowest form of 10:15 = 2:3

Lowest form of 2:3 = 2:3

Lowest form of 6:9 = 2:3

Lowest form of 15:20 = 3:4