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

### Instruction:
Peter and his dad Rupert shared the same birthday.  To make it special, they each got their own birthday cake.  Peter has 10 candles on his cake.  Rupert is 3 and 1/2 times older than Peter.  How many candles will be on Rupert's cake?

### Response:
Peter is <<10=10>>10 years old because he has 10 birthday candles on his cake.
Rupert is 3.5 times older than Peter so he will have 3.5 * 10 = <<3.5*10=35>>35 candles on his cake.
#### 35