All solutions here are SUGGESTED. Mr. Teng will hold no liability for any errors. Comments are entirely personal opinions.

Let x, y, z be the cost of tickets for ‘under 16 years’, ‘between 16 and 65 years’, and ‘over 65 years’ categories respectively.

Using Graphing Calculator,

### KS Comments:

Straight forward question. Students should address all the variables introduced clearly.

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