Answer:
FIFO 87100
LIFO 92600
AVERAGE 88400
Step-by-step explanation:
a)FIFO 1000 12 1000 12 12000
2000 18 1500 18 27000
2500
0 12 0 12 0
500 18 500 18 9000
3000 23 1700 23 39100
2200 87100
b)LIFO 1000 12 500 12 6000
2000 18 2000 18 36000
2500
500 12 0 12 0
0 18 0 18 0
3000 23 2200 23 50600
2200 92600
c)average 1000 12 12000 500
2000 18 36000 2000
3000 16 48000 2500 16 40000
500 16 8000 0
3000 23 69000 0
3500 22 77000 2200 22 48400
88400