Fahima buys
 2 packets of bread rolls costing £1.50 for each packet 
 1 bottle of ketchup costing £1.60
 3 packets of sausages 
 Fahima pays with a £10 note 
 she gets 30p change 
 fahmia works out that one packet of sausages costs £2.30 
 is fahima right?
 you must show how you get you answer