Question

determinati toate numerele naturale de forma abc, stiind ca 200

Answer 1

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200>abc>400

c = a + b+3

pt a=2⇒b=0⇒c=5

pt a=2⇒b=1⇒c=6

pt a=2⇒b=2⇒c=7

pt a=2⇒b=3⇒c=8

pt a=2⇒b=4⇒c=9

pt a=3⇒b=0⇒c=6

pt a=3⇒b=1⇒c=7

pt a=3⇒b=2⇒c=8

pt a=3⇒b=3⇒c=9

⇒abc={205,216,227,238,249,306,317,328,339}