Apiece of a chain's length and weight are in proportion. if 320 cm of chain weighs 8 kg, then a) 40 cm of chain weighs 2 kg. b) 80 cm of chain weighs 2 kg. c) 80 cm of chain weighs 4 kg. d) 160 cm of chain weighs 2 kg.

The answer is B.

Step-by-step explanation:

320:8 -> The ratio

Dividing both sides of the ratio by 4...

80:2 -> Equivalent to the original ratio

So, in the end, B is the correct answer.

Have a great day!

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

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step-by-step explanation: