Evelyn intends to give her 12 good friends a trea

Evelyn intends to give her 12 good friends a treat at the school canteen. Her friends can have either a bowl of noodles or a plate of chicken rice. A bowl of noodles costs $1.20 while a plate of chicken rice is $1.50.

a) What is the maximum and minimum amount of money she may have to spend?

b) If she intends to spend not more than $16 on the treat, what is the maximum number of plates of chicken rice her friends can have if two of them insist on having noodles?

Reference: Oxford New Syllabus Mathematics 3

Chapter 3: Linear Inequalities

Exercise 3(d) Question 16