Question

ma puteti ajuta,va rog,repede,dau coroana

Answer 1

4. a/1=b/4=c/7=(a+b+c)/(1+4+7)=120/12=10

a=10

b=4×10=40

c=7×10=70

5. a=12

b=30

6. a=10

b=60

7. a=72

b=108