Below is an instruction that describes a task. Write a response that appropriately completes the request in French. Please answer in French.

### Instruction:
 John has 3 bedroom doors and two outside doors to replace. The outside doors cost $20 each to replace and the bedroom doors are half that cost. How much does he pay in total?


### Response:
 Les portes extérieures coûtent 20 $ chacune à remplacer, donc cela fait 2 * 20 = 40 $
Les portes intérieures coûtent 20/2 = 10 $ chacune à remplacer
Il a 3 portes intérieures à remplacer, donc cela fait 3 * 10 = 30 $
Donc au total, le coût est de 40 $ + 30 $ = 70 $