Please answer the following question:

Computations involving different cost-flow assumptions. Arnold Company's raw materialpurchases during January, its first month of operations, were as follows:

QuantityCost perUnitTotalCost

1/2 Purchased . . . . . . . . . . . . . . . . . . . . . . . . . . 1,200 pounds $2.20 $2,640

1/8 Purchased . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,200 pounds $2.25 $4,950

1/15 Purchased . . . . . . . . . . . . . . . . . . . . . . . . . .2,800 pounds $2.28 $6,384

1/23 Purchased . . . . . . . . . . . . . . . . . . . . . . . . . .1,500 pounds $2.30 $3,450

1/28 Purchased . . . . . . . . . . . . . . . . . . . . . . . . . .3,000 pounds $2.32 $6,960

Total Goods Available for Use . . . . . . . . . . . . . . 10,700 pounds $24,384

The inventory on January 31 was 3,500 pounds. Compute the cost of the inventory onJanuary 31 and the cost of raw materials issued to production for January under each ofthe following cost-flow assumptions:

a. FIFO.

b. Weighted average.

c. LIFO.