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Wiki User
The answer is 90.
Dividing in half is also same as multiplying it by 2. Then you add 10, you'll get 90.
40
The answer is: 20/2 plus 30 = 40
50
If you are asking 80/2, +6*5 i'll do that. You have specified you divide by 2 first. 80/2 is 40. 40+(6*5) is 70