The price index of a double storey terrace in the year 2000 based on the year 1984 was 150. If the price of the terrace was RM 139 500 in the year 2000, find its price in the year 1984.

The number of students in a school decreased from 1600 students in the year 2017 to 1520 students in the year 2018. Calculate the index number to show the change in the number of students in they year 2018 based on the year 2017.

A box of tissues cost RM1.20 and RM1.60 in the year 2003 and 2006 respectively. Calculate the price index of a box of tissues for the year 2006 based on the year 2003.

The average monthly telephone bill for a school in the year 2005 was RM 70.00. The index number of the telephone bill is 125 in the year 2012, using of the year 2005 as the base year. Calculate the average monthly telephone bill for the school in the year 2012.

The price index for a bowl of curry mee in the year 1996 based on the year 1990 was 140 and the price index for a bowl of curry mee in the year 2000 based on the year 1996 was 105. Find the price index of bowl of curry mee in the year 2000 based on the year 1990.

Calculate the value of y.

The table above shows the price indices of three materials used to produce a type of bottle for the year 2019 based on the year 2015. The quantities of materials P, Q and R used are in the ratio of 10 : 3 : 2. Calculate the composite index for the year 2019 based on the year 2015.

Price index of one kilogram of three types of fruits sold in a stall in the year 2018 based on the year 2010 was 175, 120 and 160 respectively. Find the composite index of these fruits in the year 2018 based on the year 2010.

The admission of students in a school according to the Science stream and the Arts stream follows the ratio 60 : 40. Given that the admission index of students according to the Science stream and the Arts stream in the year 2019 based on the year 2015 was 120 and 130 respectively. Find the composite index for the admission of students in the school in the year based on 2019 and 2015.