The rod

The rod has a length of 90cm. Half is painted blue, the third is red, and the rest is yellow. How long is the yellow part of the rod?

Correct answer:

z =  15 cm

Step-by-step explanation:

90=290+390+z  90=90/2+90/3+z  6z=90  z=690=15  z=15=15 cm



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