para construir 4 pilares don cancio utiliza 18 kilos de arena,si quiere construir 20 pilares.cuanta arena necesitara?
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Verified answer
[tex]20 \times 18 = 36[/tex]
Respuesta:
18 entre 4 =4.5 kg de arena x cada pilar
4.5 x 20 =90 kg