21 Feb '15 06:53

An NZ supermarket chain is offering collectable cards with purchases.

With every $10 spent you get 4 cards (all different).

There are 108 cards to collect.

How much do you have to spend before you are likely

(better than 50% chance) to obtain a set?

This is a real problem and I'm very keen to know the answer!

With every $10 spent you get 4 cards (all different).

There are 108 cards to collect.

How much do you have to spend before you are likely

(better than 50% chance) to obtain a set?

This is a real problem and I'm very keen to know the answer!

**THANKS**