Jadzia finished 8 of the 10 problems she had for homework what percent of her homework did jadzia finish?

When there were 8 pirates (Kraken and seven other pirates), they divided gold pieces equally. Let's assume each one got 'x' pieces. So total gold pieces were '8x'.

When two more pirates showed up and they became total 10 pirates to divide gold pieces equally. Let's assume each one got 'y' pieces. So total gold pieces were '10y'.

But the quantity of gold was same as before. It means 10y = 8x.

It also says "Kraken received 40 fewer pieces of gold than he would have if the two extra pirates hadn't arrived". It means x = 40 + y.

Substituting x = 40 + y into 10y = 8x;

10y = 8(40+y)

10y = 320 + 8y

10y - 8y = 320

2y = 320

y = 160.

Hence, Kraken received 160 pieces of gold.