The sale values (output quantity multiplied by price) for four types of product of a company at current price and 1998 price arc as follows:

(RM million)

Sale value at current price Sale value at 1998 price Type of product 1998 2009 2010 2009 2010 A 50 120 175 100 125 B 10 30 24 25 20 C 40 40 50 20 20 D 20 50 90 40 60 Total 120 240 339 185 225

Calculate:

(a) the Laspeyres quantity index for the year 2010 by using 1998 as the base year, [2 marks]

(b) the Laspeyres quantity index for the year 2010 by using 2009 as the base year, [3 marks]

(c) the percentage change in the output quantity of the company from 2009 to 2010. [1 marks]

Just in case you want to know, this is one of the question of STPM Maths S 2011.

(a) 225/120 * 100 = 187.5

(b) No clue at all...

(c) Since (c) is related to (b)...