Question

Please help me out with this

Answer 1

To convert minutes in hours, you have to divide by 60.

We can distribute this division in a smart way: since
`60=6* 10`, we have

`(19.2* 10^8)/(6* 10) = (19.2)/(6) \cdot (10^8)/(10) = 3.2 \cdot 10^7`