SPM 2016 Additional Mathematics (Forecast Paper)
Answer any two questions from this section.Question 13
Table 2 shows the prices, the price indices and the proportion of four materials, A, B, C and D used in the production of a type of bag.
Price (RM) for the year
Price index in the year 2014 based on the year 2011
(a) Calculate the value of x and of y. [2 Marks]
(b) Find the composite index for the bag in the year 2014 based on the year 2011. [3 Marks]
(c) Given the cost for the production of the bag in the year 2014 is RM 115, find the corresponding cost in the year 2011. [2 Marks]
(d) From the year 2014 to year 2015, the price indices of material B and C increase by 5%, material A decrease by 10% and material D remains unchanged.
Calculate the composite index in the year 2015 based on the year 2011. [3 Marks]
Answer and Solution: