Răspuns :
3) x- cantitatea de fructe.
1. 64/100* x= 16x/25
2. (x- 16x/25)* 1/2= (25x/25-16x/25) * 1/2= 9x/25*1/2= 9x/50
3. x- (16x/25+ 9x/50)= 45; x - 41x/50=45; 50x/50- 41x/50= 45; 9x/50=45 ⇒9x= 2250⇒ x=250
1. 64/100* x= 16x/25
2. (x- 16x/25)* 1/2= (25x/25-16x/25) * 1/2= 9x/25*1/2= 9x/50
3. x- (16x/25+ 9x/50)= 45; x - 41x/50=45; 50x/50- 41x/50= 45; 9x/50=45 ⇒9x= 2250⇒ x=250
3) N= cantitate fructe
I zi) 64/100 x 9/25N = 16/25N
REST: N - 16/25N = 9/50N
II zi) 50/100 x REST = 50/100 x 9/25N = 9/50N
III zi) 45 kg
N = 45 + I zi + II zi
= 45 + 16/25N + 9/50N ( amplificam N, 45 si 16/25N cu 50 pentru a aduce numerele la acelasi numitor comun )
50N = 2250 + 32N + 9N
9N = 2250
N = 250
I zi) 64/100 x 9/25N = 16/25N
REST: N - 16/25N = 9/50N
II zi) 50/100 x REST = 50/100 x 9/25N = 9/50N
III zi) 45 kg
N = 45 + I zi + II zi
= 45 + 16/25N + 9/50N ( amplificam N, 45 si 16/25N cu 50 pentru a aduce numerele la acelasi numitor comun )
50N = 2250 + 32N + 9N
9N = 2250
N = 250