Question

The mass of 20 metres of copper wire is 0.9kg Find the mass of 270 metres of the same type of copper wire​

Answer 1

Answer:

Mass of 20 meters of wire=0.9kg

so,first convert kgs to grams.

0.9×1000=900

now,

900/20=45

1 metres mass is 45 grams

270×45=12150gram

12150/1000=12.15kgs