Răspuns :
117-38= 79(instrumente de suflat)
735-(117+79)=
=735- 196
=539 (instrumente de percutie)
verificare: 539+79+117=
=618+117
=735
735-(117+79)=
=735- 196
=539 (instrumente de percutie)
verificare: 539+79+117=
=618+117
=735
Cate instrumente de suflat ?
117 - 28 = 89
Cate instrumente de percutie ?
735 - (117+89) = 529
Verificare :
117 + 89 + 529 = 735
117 - 28 = 89
Cate instrumente de percutie ?
735 - (117+89) = 529
Verificare :
117 + 89 + 529 = 735