Planet ruba has a population of 1 million alien planet Zamba has one hundred thousand million how many more aliens does planet ruba have than planet zamba

Let's put it into numbers:

Ruba: 1 000 000

Zamba: 100 000 000 000

Zamba has many more aliens than Ruba!

it has 100 000 000 000/1 000 000 = 100 000 times more aliens,

in absolute numbers: 100 000 000 000 - 1000 000 = = 99 999 900 000

100 000 000 000

- 100 000

=99 999 900 000