CSEC Mathematics January 2015 Question 1. (a) and (b) Section 1 of Paper 2
1. Using a calculator, calculate the exact value of (12.8)2 - (30 / 0.375)
Answer: (12.8)2 - (30 / 0.375)
(163.84) - (80)
= 83.84
2. Mark spends 3/8 of his monthly income on housing. Of the remainder, he spends 1/3 on food and saves what is left.
(i) Calculate the fraction of his monthly income spent on food.
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