Reverse Percentages

Question 1:

A house was sold for £149000, at a profit of 21%. Find the original amount.

£123140

Question 2:

A house was sold for £123000, at a loss of 33%. Find the original amount.

£183582

Question 3:

A car was sold for £36000, at a profit of 24%. Find the original amount.

£29032

Question 4:

A car was sold for £40000, at a profit of 49%. Find the original amount.

£26846