Smallly bought three notebooks and a pen, the unit price of the notebook is 4 times that of the pen, and the small notebook bought 18 yuan, a

  

smallly bought three notebooks
and a pen, The price of the notebook
is 4 times that of the pen, and the small notebook pays 18 yuan, how much is a pen?



Assuming the pen X yuan, 4X*3=18

12X=18

X=1.5 So the pen is 1.5 yuan





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