Please, what this expression means!"
The formula means IF cell C4 has text F or N, then use the next condition, otherwise set it to zero (5*0=0). When C4 equals to F or N then if F4 is greater than 60, use value 2 which means the total is 5*(2+2), otherwise (i.e. F4 less than or equal to 60) use value 1 which means the total is 5*(2+1)
Therefore the valid results are 0, 15 or 20.
Hope this helps…
@Pedro1 - edited to escape asterisks, which weren’t being rendered in the initial format. Very nice explanation. 