Spacing 82540

There are 10 trees in a row with the same spacing x = =3 meters. How many meters does a person travel if he waters two trees at once

Correct answer:

s =  150 m

Step-by-step explanation:

n=10 x=3 m x1=2 x=2 3=6 m x2=2 (2 x+x)=2 (2 3+3)=18 m x3=2 (4 x+x)=2 (4 3+3)=30 m x4=2 (6 x+x)=2 (6 3+3)=42 m x5=2 (8 x+x)=2 (8 3+3)=54 m  s=x1+x2+x3+x4+x5=6+18+30+42+54=150 m



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