<human>:  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?
<bot>: How many candles are on Peter's cake? ** Peter is 10 years old because he has 10 birthday candles on his cake.
How many candles will be on Rupert's cake? ** Rupert is 3.5 times older than Peter so Rupert will have 3.5*10 = <<3.5*10=35>>35 candles on his cake.
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