During March 2002 JSmith purchased goods to the value of $3000 one third of which was sold for $ 1 200 during March. Rental and electricity for the month amounted to $200 and electricity to $30.
Which amounts represents the total costs to be taken into account against income according to the matching priniciple for March 2002.
1 $ 3 230
2 $ 1 000
3 $ 1 230
4 $ 1 200
5 none of the above