Question

The diameter of the Moon is 3.5 × 10^3 km.

The diameter of the Sun is 1.4×10^6 km.

Calculate the ratio of the diameter of the Moon to the diameter of the Sun.
Give your answer in the form 1 : n

Answer 1

1 : 400

Explanation:

`(3.5 x 10^(3) )/(3.5 x 10^(3) ) : (1.4 x 10^(6 ) )/(3.5 x 10^(3) )`

1 : .4 x
`10^(3)`

1 : 4 x
`10^(2)`

1 : 400