Question

Dylan has two cubes of iron. The larger cube has twice the mass of the smaller cube. He measures the smaller cube. Its mass is 20 grams, and its density is7.87 g/cm3. What’s the larger cube’s volume? 

Answer 1

$Density={ \frac {Mass}{Volume} } \\ \\ Volume={ \frac{Mass}{Density} } \\ \\ Volume={ \frac{20g+20g}{7.87g/cm^3} } \\ \\ Volume=5.08\ cm^3 \\ \\ \\ \\ Volume\ of\ larger\ cube=5.08\ cm^3$