3. A shop sells packs of black pens, packs of red pens and packs of green pens. There are 2 pens in each pack of black
pens, 5 pens in each pack of red pens, 6 pens in each pack
of green pens. On Monday, A total of 212 pens were sold in
the ratio of 7:3:4 (number of packs of black pens sold:
number of packs of red pens sold: number of packs of
green pens sold). Work out the number of green pens sold.
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Your answer
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