Question

The sum of weight of an iron piece and a copper piece is 1280 g. The volume of the Copper piece is twice that of the iron piece . If the weight of 1 Cu . cm of Iron is 7.8 g and that of Copper is 8.9g , find the Volume of each piece.​

Answer 1

Answer:

Answer:

Weight of iron is 390g

Weight of copper is 890g

Volume of iron is 50ml

Volume of copper is 100ml

Answer 2

Answer:

Let the amount of iron piece be x

Amount of Copper piece=2x

Density of iron=7.8g/cc

Density of copper=8.9g/cc

Weight of iron=7.8x

Weight of copper=17.8x

Total weight=1280g

7.8x+17.8x=1280

25.6x=1280

x=50

Weight of iron=7.8×50=390g

Weight of copper=890g

Volume of iron=390/7.8=50ml

Volume of copper=890/8.9=100ml

hope it will be helpfull.....

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