# Brain teasers

PUZZLES TO TEST MATHEMATICAL SKILLS -FOR THE ANSWERS TURN TO PAGE 46 STAMPS (AGE 6-8)

* Milly's parcel cost 55p to post.

* She stuck on 8 stamps.

* Each stamp was either 10p or 5p.

* How many of each stamp did Milly stick on her parcel?

TWO PUPPIES (age 8-11)

Mrs Jones runs a pet shop

* She bought two puppies for pound;60 each.

* Later she sold them.

* She made a 20% profit on one puppy.

* She made a 20% loss on the other.

* How much did she get when she sold the puppies?

* Mrs Jones then bought two more puppies.

* She sold them for pound;60 each.

* She made a 20% profit on one puppy.

* She made a 20% losson the other.

* Did she make a profit or loss on the whole deal?

Brain teaser solutions from page 46

Stamps

Milly stuck three 10p stamps and five 5p stamps on her parcel.

Number of 5p stamps 8 7 6 5 4 3 2 1 0 Number of 10p stamps 0 1 2 3 4 5 6 7 8 Total Value 40p 45p 50p 55p 60p 65p 70p 75p 80p Two puppies

In the first problem, the breeder sold the two puppies for pound;72 and pound;48, a total of pound;120.

In the second problem, the first puppy cost pound;50 and the second puppy cost pound;75, a total of pound;125. The two puppies were sold for a total of pound;120, so Mrs Jones made a loss of pound;5.

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