Question

The volume of the Earth is approximately 7.67 x 10^-7 times the volume
of the Sun. Express this figure in usual form.

Answer 1

Given, volume of Earth is approximately 7.67 × 10^-7 times the volume of Sun.

We know by laws of exponents, a^-n = 1/aⁿ

Usual form:

⇒ 7.67 × 10^-7 = 7.67/10⁷ = 7.67/10000000 = 0.000000767

∴ The volume of Earth is approximately 0.000000767 times the volume of Sun.