Asif is shopping for a new outfit for a special occasion. He needs a shirt, a pair of trousers and a pair of shoes. Once he has picked out the items he likes and checked the prices he realises that:

• if he doesn’t buy the shirt, he can get the other items for £115
• if he doesn’t buy the trousers, he can get the other items for £100
• if he doesn’t buy the shoes, he can get the other items for £75.

But, of course, he needs the shirt, the trousers and the shoes. So what will he have to pay for all of them?