The charges of three buffet catering companies X, Y and Z are shown below.
Buffet table setting and delivery cost per day
Cost per person per day
(a) Kirean wants to cater for a total of 80 people for 1 day at the lowest possible cost. Which company should she select? (1m)
(b) Company X and Z would charge the same amount for Rahan’s 4-day event. How many people did he want to cater for? (2m)