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Three friends split the reward in the ratio of 3:5:7. One of them received exactly €49. How many euros did they get together?

Correct answer:

s =  105 eur

Step-by-step explanation:

s=a+b+c 49 = a  49 = b   49 = c a:b:c=3:5:7=3x:5x:7x  x1=49/3=34916.3333 eur x2=49/5=549=9.8 eur x3=49/7=7 eur  x3  N , c=49 eur x=x3=7  a=3 x=3 7=21 eur b=5 x=5 7=35 eur c=7 x=7 7=49 eur  s=a+b+c=21+35+49=105 eur

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