Question

alin ioana si stefan au prins 37 de fluturi .Ddaca impartim nr fluturior. prinsi de ioana la nr fluturilor prinsi de alin .. obtinem catul 3 si restul 1 . Stefan a prins un nr dublu de fluturi fata de alin . Cati fluturi a prins fieecare copil

Answer 1

a+i+s=37
i:a=3 rest 1
i=3a+1
s=2a

a+3a+1+2a=37
6a=37-1
6a=36
a=36:6
a=6 fluturi a prins Alin
i=3x6+1=18+1=19 fluturi a prins Ioana
s=2x6=12  fluturi a prins Stefan

Answer 2

A+I+S=37 f
I:A=3 r 1....=> I=A*3+1...=> I=3A+1
S=A*2...=>S=2A

A+3A+1+2A=37
6A+1=37
6A=37-1
6A=36
A=36:6
A=6 fluturi (Alin)
I=6*3+1
I=18+1
I=19 fluturi (Ioana0
S=6*2
S=12 fluturi (Stefan)

6+19+12=
=25+12
=37 fluturi in total