Question

6. Dan şi Dana au împreună 120lei. Dan are 60% din suma Danei. Suma de bani a lui Dan este: A. 72lei B. 45lei C. 75lei D. 48lei ​

Answer 1

60% 120 =60/100x120=6/10x120=6x12=72lei

Raspuns A

Answer 2

Răspuns:

Suma bani Dan=x

Suma bani Dana=y

x=60/100×y

x=6/10×y=>x=3/5×y

3y/5 +y=120/×5

3y+5y=600

y=600/8=75 lei

Dan are : 3×75/5=3×15= 45 lei(B)