There are 320 ducks in a pond.  On the first night 1/4 of them get eaten by a fox.  On the second night 1/6 of the remaining ducks fly away, and on the third night 30 percent are stolen.  How many ducks remain after the three nights?
How many ducks are eaten on the first night? ** First night:320(1/4)=80
How many ducks are left after the first night? ** 320-80=<<320-80=240>>240
How many ducks fly away on the second night? ** Second night:240(1/6)=40
How many ducks are left after the second night? ** 240-40=<<240-40=200>>200
How many ducks are stolen on the third night? ** Third night:200(.30)=60
How many ducks remain after the three nights? ** 200-60=<<200-60=140>>140 ducks remain
#### 140