Question

20*20*65*78*f = 90008
What is 'f"?
Please

Answer 1

`20\cdot20\cdot65\cdot78\cdot f = 90008\\ 2028000f=90008\\ f=(90008)/(2028000)=(11251)/(253500)`

Answer 2

Ok so to do this we need to do
90008/(20*20*65*78) = 0.04438 (4 sf)