Question

Data for questions 30 and 31
an index of machine prices has year 1 as base year, with an index number of 100. By
he end of year 9 the index has risen to 180 and by the end of year 14 it had risen by
nother 18 points.
b)What was the percentage increase in machine prices between years 9 and 14?
b) 9%
d) 18%​

Answer 1

Answer:

9%

an index of machine prices has year 1 as base year, with an index number of 100. By

he end of year 9 the index has risen to 180 and by the end of year 14 it had risen by

nother 18 points.

Step-by-step explanation:

9% percentage increase in machine prices between years 9 and 14