One cubic cm of iron weights 7.8 grams.write as sequences, the volumes of weights of iron cubes of sides 1 cm,2 cm and so on what will be the answer?

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Solution

Volume of 1 cm cube = $1^{3} = 1 c m^{3}$
Weight = $1 \times 7.8$
=7.8g
Volume of 2 cm cube = $2^{3} = 8 c m^{3}$
Weight = $8 \times 7.8 = 62.4 g$
Volume of 3 cm cube = $3^{3} = 27 c m^{3}$
Weight = $27 \times 7.8$
=210 g

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One cubic cm of iron weights 7.8 grams.write as sequences, the volumes of weights of iron cubes of sides 1 cm,2 cm and so on what will be the answer?

Volume of 1 cm cube =13=1cm3 Weight = 1×7.8 =7.8g Volume of 2 cm cube =23=8cm3 Weight = 8×7.8=62.4g Volume of 3 cm cube =33=27cm3 Weight =27×7.8 =210 g

Volume of 1 cm cube = $1^{3} = 1 c m^{3}$
Weight = $1 \times 7.8$
=7.8g
Volume of 2 cm cube = $2^{3} = 8 c m^{3}$
Weight = $8 \times 7.8 = 62.4 g$
Volume of 3 cm cube = $3^{3} = 27 c m^{3}$
Weight = $27 \times 7.8$
=210 g