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3 marksNumber Theory and Computation Problems

CSEC Mathematics · May/June 2008 · Paper 2 · Question 8(b)(i)

She had to post a parcel and the total cost of postage was $25.70. She must select stamps from the collection to make up this amount.

What stamps can she select from the collection, to make up this amount if she must use as many $4.00 stamps as possible?

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Other parts of this question

  1. 8(a)What was the TOTAL cost of the stamps?[2 marks]
  2. 8(b)(ii)What stamps can she select from the collection, to make up this amount if she must use all her $1.00 stamps?[2 marks]
  3. 8(c)(i)What is the LARGEST number of stamps that she can use from the collection to post the parcel?[3 marks]
  4. 8(c)(ii)List the selection of stamps she can use.[3 marks]

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