Question 23

Fill in '+' or '-' sign in between these numbers so that they give the correct answer.

$$1  2^3  3^3  1  4^3 = 31$$

Solution

Option A : $$1\ +\ 2^{3\ }+\ 3^{3\ }\ -1\ -4^3=-29$$

Option B: $$1\ +\ 2^{3\ }+\ 3^{3\ }\ +1\ -4^3=-27$$

Option C: $$1\ -\ 2^{3\ }-3^{3\ }\ +1\ +4^3=31$$

Option D: $$1\ -\ 2^{3\ }-3^{3\ }\ -1\ +4^3=29$$

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