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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
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
A number machine takes any number put into it, adds 20, then subtracts...
13 + 20 = 33
33 - 10 = 23
23 + 8 = 31
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Most Upvoted Answer
A number machine takes any number put into it, adds 20, then subtracts...
13 + 20 = 33
33 - 10 = 23
23 + 8 = 31
SO THE ANSWER IS 31 .
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Community Answer
A number machine takes any number put into it, adds 20, then subtracts...
20 - 10 + 8 +13= 31


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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)13b)23c)31d)33Correct answer is option 'C'. Can you explain this answer?
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