Question

the mass of 20 metres of copper wire is 0.9 kg find the mass of 170 metres of the same type of copper wire ?
​

Answer 1

Answer:7.65

Step-by-step explanation:

Answer 2

Answer: The mass of 170 metres of the same type of copper wire is

7.65 kilogram.

Step-by-step explanation: Given data:

Mass of wire= 0.9 kilogram

Length of wire= 20 meters

Length of 2nd wire= 170 meters

Mass of wire = x

0.9 kilograms - - - - - - 20 meters

X--------------------- 170 meters

By cross multiplication, we get

20 X = 0.9 x 170

20 X = 153

Divide 20 both sides, we get

X = 153/20

X = 7.65 kilogram is the required answer.