please check the q from the screen shot thx

3. Consider the following limitorder book for a share of stock. The last trade in the stock occurred at a price of $50. Bid Ask Price Size Price Size $49.75 500 $50.25 100 $49.50 800 $51.50 100 $49.25 500 $54.75 300 $49.00 200 $58.25 100 $48.50 600 If a market buy order for 350 shares comes in, What is the average cost per share if the order is lled