The data about per unit price and weights of four different items in the year 2014 and 2015 are as follows. Compute the index number of the year 2015.
Item |
Weight |
Year 2014 |
Year 2015 |
Price per unit |
Price per unit |
A |
40 |
32 |
40 |
B |
25 |
80 |
100 |
C |
20 |
24 |
30 |
D |
15 |
4 |
6 |