Question

A new bitcoin exchange is running a promotion of 0 fees for a month in order to get customers to trade there. You observe the order book for bitcoin on an exchange to be as follows:

Bids (qty @ price)	Asks (qty @ price)
1 @ 508	1 @ 552
2 @ 516	2 @ 560
3 @ 528	2 @ 579
2.5 @ 533	3 @ 589

If you want to buy 5 BTC right now, what is the average price per BTC that you will pay?

Answer 1

Buy will be baesd on below quantity and price
qty	rate	amt
1	552	552
2	560	1120
2	579	1158
5		2830
Average price =
2830/5		$                          566.00
answer =		$                          566.00