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Puzzle #212: Can you work out how Sam’s mum can unmute her television?

Can you solve this week’s arithmetical puzzle, Sound off? Plus the answer to puzzle #211

8 March 2023

#212 Sound off

Set by Alison Kiddle

“Why isn’t the sound working?” Mum muttered as she hit the mute key on the remote control.

“You’ve probably got the wrong remote, Mum,” Sam said. “Remember, it’s the long, thin one for the television, the wide one for the set-top box and the little one for the speakers. Which one did you mute?”

“I can’t remember,” said Mum, as she got her thinking cap on to try to fix things.

To get sound, all three remotes have to be unmuted. Mum came up with the most efficient system for cycling through the …

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