Question
PSLE
Three boys collected pens. David collected 2m pens which was one fifth as many as what Mark collected. Ethan collected 9 pens less than David. How many pens did they collect altogether? Give the answer in terms of m in the simplest form.
2 m

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PSLE
Three boys collected pens. David collected 2m pens which was one fifth as many as what Mark collected. Ethan collected 9 pens less than David. How many pens did they collect altogether? Give the answer in terms of m in the simplest form.