A house was built in 1985 and cost $62000. It was sold in 2003 for $310000.

(a) Work out the 1985 price as a percentage of the 2003 price.

(b) Calculate the percentage increase in the price from 1985 to 2003.

a) 20%

b) 400%

Step-by-step explanation:

In a) you firts do

$310000=100% what about $62000. Then cross multiply

$62000*100%=6200000:310000=20%

In b) you first do

$62000=100% what about $248000. Then cross multiply

$248000*100=$24800000:62000=400%