abonatlast abonatlast

04-04-2019
Mathematics

contestada

Packs of pens come in sets of 10. Packs of felt pens contain 6 coloured and 4 black If a school buy enough packs so there are 90 black felt pens, how many coloured pens will be bought ?

Respuesta :

05-04-2019

90/4= 22.5 which rounds up to 23.

23x6 = 138

138 colored pens :)

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