Wood 11

Father has 12 1/5 meters long wood. Then I cut the wood into two pieces. One part is 7 3/5 meters long. Calculate the length of the other wood?

Correct result:

b =  4.6 m


f=12+15=615=12.2 m a=7+35=385=7.6 m  b=fa=12.27.6=235=235 m=4.6 m

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