A number machine takes any number put into it, adds 20, then subtracts – McqOptions

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1.	A number machine takes any number put into it, adds 20, then subtracts 10, and then adds 8. If 13 is put into the machine, what number comes out of it?
A.	13
B.	23
C.	31
D.	33
Answer» D. 33

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