if 50 geusts cost 900 dollars and 100 geusts cost 1650 dollars how much will 75 geust cost

Question

Number of guests    cost ($)

50                               $900

100                              $1650

150                                $2400

200                                #3150

Answer 1

900/50 =18$ eech

1650/100=16.50 $ eech, so NOT strate line

how bout take averaej...

kost for 75=half kost for 150=(900+1650)/2

=2550/2=1275$ or17$ eech