Fedor

Fedor stood in the small pool. Above the surface was a part of his body that was twice as long as part of his body underwater. What height does Fedor have, if his body part below the surface is 5 dm long?

Correct result:

x =  15 dm

Solution:

a=5 b=2a=2 5=10 x=a+b=5+10=15 dm



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