Is this enough to lose 2 pounds a week?

I'm currently 169 pounds and want to get down to 120. I workout a half hour everyday and alternate each day with walking on the treadmill and using an elliptical trainer. I try to eat about 1200 calories a day. I want to lose about 2 pounds a week. is all this enough for that ?
Is this enough to lose 2 pounds a week?
Post Opinion