Question

5. Determine if the following ratios form a proportion
(i) 25 cm: 1 m and 40: 160
(ii) 39 litres : 65 litres and 6 bottles: 10 bottles
(iii) 200 mL :2.5 L and 4: 350
(iv) 2 kg : 80 kg and 25 g : 625 kg​

Answer 1

(1) 25:100 and 40:160

1:4 and 1:4

since, 1m=100cm

(2) 39:65 and 6:10

39:65 and 3:5

(3)200:2500 and 4:350

2:25 and 2:175

since, 1l=1000ml

(4)2:8 and 25:625000

1:4 and 1:125000

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