Notam cosurile cu a, b si c
c - b = a : 2 ==> c = a : 2 + b
c - 38 = b + 38 = a
a = b + 38
c - a = 38
a |_____|_____|+38
b |_____|_____|
c |_____|_____|_____|+19
38 - 19 + 38 = 57 (un segment egal)
a = 2 × 57 + 38 = 114 + 38 = 152
b = 2×57 = 114
c = 3×57+19 = 171+19 = 190
152 + 114 + 190 = 456 (gutui in total in cele 3 cosuri)
Raspuns:
456 gutui