Question

4. Determine if the following ratios form a proportion. Also, write the middle terms
and extreme terms where the ratios form a proportion
(a) 25 cm: 1 m and 40:160 (b) 39 litres : 65 litres and 6 bottles: 10 bottles
(c) 2 kg : 80 kg and 25 g : 625 g (d) 200 mL : 2.5 litre and 4:50​

Answer 1

Answer:

1. 25 cm: 1 m and 40: 160

= 25 cm : 100 cm and 40 :160 = 1: 4

= 1: 4 = 1: 4

Therefore 25 cm: 1 m:: 40: 160

Middle terms : 1 m and 40

Extreme terms : 25 cm and 160