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? Let's answer step by step:
Peter is 10 years old because he has 10 birthday candles on his cake. Rupert is 3.5 times older than Peter so Rupert will have 3.5 * 10 = 35 candles on his cake. The answer: 35.