saroshinjadejaroen saroshinjadejaroen
  • 06-10-2022
  • Mathematics
contestada

Kenny had some blue and green pens in the ratio 3 : 4. After he gave away 28 blue
pens and bought another 12 green pens, the number of blue pens Kenny has is now
1/2 the number of green pens. How many green pens did Kenny have at first?

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