The average height

The average height of six friends is 181 cm. Peter came among them, which reduced the average height by 2 cm. Calculate Peter's height.

Correct answer:

x =  167 cm

Step-by-step explanation:

(181 6+x)/(6+1)=1812  0.142857x=23.857143  x=0.1428571423.85714286=167  x=167=167 cm



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