Question

Suma a trei numere este 769.Suma primelor doua este 495,iar suma ultimelor doua este 600.Afla cele trei numere.

Answer 1

I+II+III=769
I+II=495
II+III=600
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I,II,III  ?

Inlocuim 495+III=769
             III=769-495
             III=274(al 3-lea numar)
II+III=600
II=600-274
II=326(al 2-lea numar)

I+326+274=769
I+600=769
I=769-600
I=169(primul numar)

Answer 2

a+b+c=769
a+b=495
b+c=600
495+c=769
c=274
b+c=600
b+274=600
b=326
a+b=495
a+326=495
a=169
a+b+c=169+326+274=742