Integer, mental math problem

Algebra Level 3

Suppose we have.

ABCDE=1

Also Suppose A,B,C,D,E represent integers.

What is the minimum value that A+B+C+D+E can be?

-2 5 -1 0 -3 1 2

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Dylan Scupin-Dursema by Dylan Scupin-Dursema , 29, USA

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3 solutions

Sajjad Sajjad
Mar 25, 2015

Easily, we can say,

A B C D E = − 1 × − 1 × − 1 × − 1 × 1 ABCDE = -1 \times -1 \times -1 \times -1 \times 1

So,

A + B + C + D + E = ( − 1 ) + ( − 1 ) + ( − 1 ) + ( − 1 ) + 1 = − 3 A + B + C + D + E = (-1) + (-1) + (-1) + (-1) + 1 = -3

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Fox To-ong
Mar 3, 2015

to have a minimum value ABC and D must be a negative integer,

1 Helpful 0 Interesting 0 Brilliant 0 Confused
Michael Fuller
Feb 28, 2015

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Thanks you for your work Michael Fuller.

Dylan Scupin-Dursema - 6 years, 3 months ago

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