Question

A pyramid was built with approximately 2.3 million stone blocks, each weighing 2.4 tons (1 ton = 2,000 lbm). Find the mass of the pyramid in kg.

Answer 1

Total weight in tons

$\\ \sf\longmapsto 2.3\times 10^6\times 2.4$

$\\ \sf\longmapsto 5.52\times 10^6$

$\\ \sf\longmapsto 5520000ton$

• 1ton=1000kg

$\\ \sf\longmapsto 5520000\times 1000$

$\\ \sf\longmapsto 5520000000kg$

$\\ \sf\longmapsto 5.52\times 10^9Kg$

Answer 2

$\sf\longmapsto \: 2.3 × 10 ^{6} × 2.4$

$\sf\longmapsto \: 5.52 \times {10}^{6}$

$\sf\longmapsto \: 5520000 \: tons$

$\sf\longmapsto \: 5520000 \: \times 1000$

$\sf\longmapsto \: 5520000000 \: kg$

$\sf\longmapsto \: 5.52 × 10⁹kg$

Additional Comment:

We know 1 ton = 1000 kg.