I need to know how I would write the formula for this function, if anyone
could help me that would be wonderful

If a number in a cell is between 1-15 then I need it in another cell to only
equal 1, if the number is between 16-30 I need it to equal 2, if the number
is 31-45 I need it to equal 3, if the number is 46-60 I need it to equal 4,
if the number is between 61-75 I need it to equal 5, so on and so fourth.

These are 15 minutes increments of time. hard to explain, but in one cell
will be the time in minutes for example 18 minutes, in another cell will be
number that is a base unit for example 5. I need the number in the third cell
to be the base number of units which is 5, and the time units from the other
cell which since it is 18 would actually equal two time units, so 18=2, then
the total number in the third cell will be 7 (5+2=7), but I need the
spreadsheet to calculate the Time minutes of 18 into two units of time. Can
anyone help me with this one is seems complicated.
Thank you so much