Daca adun sfertul lui a cu jumatatea lui b si cu treimea lui c obtin 120.Stiind ca jumatatea lui b este cu 24 mai mare decat sfertul lui a si de 4 ori mai mare decat treimea lui c .Afla cele trei nr si suma acestora
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a:4+b:2+c:3=120...=> ...1a+1b+1c=120
b:2=a:4+24............=>....1b=1a+24......=>1a=1b-24.......=>..1a=1c+24
b:2=c:3*4...............=>....1b=1c*4.........=>1c=1b-24*2....=>..1c=1a-24
------------------------
a:4=?b:2=?c:3=? a:4) |______|=>1a=1c+24
a*4+b*2+c*3=? b:2) |______|__|=>1b=1c+24+24
c:3) |____|=>1c=1a-24 ..si ..1c=1b-24*2
-----------------------------------------------------------
(1c+24)+(1c+24+24)+c=120
3c+24*3=120
3c+72=120
3c=120-72
3c=48
1c=48:3
1c=16.....=>...3c=16*3...=>...3c=48...=>..c=48
1a=16+24
1a=40.........=>...4a=40*4....=>...4a=160.....=>...a=160
1b=16+24*2
1b=16+48
1b=64........=>....2b=64*2....=>...2b=128.....=>...b=128
a:4=160:4
a:4=40
b:2=128:2
b:2=64
c:3=48:3
c:3=16
40+64+16=120
40*4+64*2+16*3=
=160+128+48
=288+48
=336......................=> ...a+b+c=336
verificare
160:4+128:2+48:3=
=40+64+16
=104+16
=120
40 40 40 40
a) |_____|_____|_____|_____|=>40*4=160...=>a=160 ..si..a:4=160:4=40
40 24 40 24
b) |_____|__|_____|__|=>40*2+24*4=80+48...=>b=128...si..b:2=128:2=64
16 16 16
c) |___|___|___|=>16*3=48....=>c=48...si c:3=48:3=16
b:2=a:4+24............=>....1b=1a+24......=>1a=1b-24.......=>..1a=1c+24
b:2=c:3*4...............=>....1b=1c*4.........=>1c=1b-24*2....=>..1c=1a-24
------------------------
a:4=?b:2=?c:3=? a:4) |______|=>1a=1c+24
a*4+b*2+c*3=? b:2) |______|__|=>1b=1c+24+24
c:3) |____|=>1c=1a-24 ..si ..1c=1b-24*2
-----------------------------------------------------------
(1c+24)+(1c+24+24)+c=120
3c+24*3=120
3c+72=120
3c=120-72
3c=48
1c=48:3
1c=16.....=>...3c=16*3...=>...3c=48...=>..c=48
1a=16+24
1a=40.........=>...4a=40*4....=>...4a=160.....=>...a=160
1b=16+24*2
1b=16+48
1b=64........=>....2b=64*2....=>...2b=128.....=>...b=128
a:4=160:4
a:4=40
b:2=128:2
b:2=64
c:3=48:3
c:3=16
40+64+16=120
40*4+64*2+16*3=
=160+128+48
=288+48
=336......................=> ...a+b+c=336
verificare
160:4+128:2+48:3=
=40+64+16
=104+16
=120
40 40 40 40
a) |_____|_____|_____|_____|=>40*4=160...=>a=160 ..si..a:4=160:4=40
40 24 40 24
b) |_____|__|_____|__|=>40*2+24*4=80+48...=>b=128...si..b:2=128:2=64
16 16 16
c) |___|___|___|=>16*3=48....=>c=48...si c:3=48:3=16
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