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cosine in the membrane

Maths Week: Your Saturday morning puzzle

Part One.

MATHS WEEK KICKED off at the weekend and as is our annual tradition here, we’re setting you a puzzle a day with all answers published on site tomorrow morning.

Get puzzling!


On the tombola stand at the fair, tickets ending in a 5 will win a bottle of wine, tickets ending in a 0 will win a bottle of brandy and tickets ending in a 1 will win a box of chocolates.

You ask how many tickets are in there altogether and you’re told:

  • If you bought 50 tickets you’d be sure of winning a bottle of wine.
  • If you bought 60 tickets you’d be sure of winning a bottle of brandy.
  • If you bought 40 tickets you’d be sure of winning a box of chocolates.

“But what chance have I of winning something?” you ask.

“You have a 2 in 3 chance of winning something,” the tombalist replies.

How many tickets in the draw?

We’ll have a second puzzle this evening for you on site – happy Saturday!

All answers will be published on on Sunday morning.

The maths gene? It all adds up to a myth>

Maths Week: Your Monday puzzle>

Maths Week: Your Tuesday puzzle>

Maths Week: Your Wednesday puzzle>

Maths Week: Your Thursday puzzle>

Maths Week: Your Friday puzzle>

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