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Sam's Allowance (Pocket Money Poser in the UK version) is a puzzle in Professor Layton and the Unwound Future.

Puzzle

US Version

Three boys are admiring a toy car on sale for 12 pounds.

Jeff: "If Pete and I pooled our allowances, we could buy this car together in two weeks!"
Sam: "Well, Pete and I could buy it in three weeks..."
Pete: "It would take you guys six weeks to save up enough."

All allowances are received weekly. How many pounds is Sam's weekly allowance?

UK Version

Three young lads are admiring a toy car that's on sale for £12.
Jeff: "If we pooled all our pocket money, Pete and I could buy this car together in two weeks!"
Sam: "Well, Pete and I could buy it in three weeks..."
Pete: "Not bad, because it would take the two of you six weeks to save up enough together."

All pocket money is received weekly. How much pocket money does Sam get, in pounds?

Hints

Click a Tab to reveal the Hint.

US Version

Don't overthink it. Try plugging in some different variables, and see what you come up with.

UK Version

Don't overthink it. Try plugging in some different variables and see what you come up with.

US Version

Jeff's allowance is two pounds a week.

UK Version

Jeff gets £2 a week pocket money.

US Version

Pete's allowance is four pounds a week.

UK Version

Pete gets £4 a week pocket money.

US Version

Jeff gets two pounds a week and Pete gets four pounds a week. Together, that's six pounds a week. They'll have enough four the toy car in two weeks. How much was that car again? And if it will take Sam and Jeff six weeks, hmm...

UK Version

Jeff gets £2 a week and Pete gets £4 a week. Together, that's £6 a week. They'll have enough for the toy car in two weeks. How much was that car again? And if it will take Sam and Jeff six weeks, hmm...

Solution

US Version

UK Version

Correct

US Version

Yes! You hit the nail on the head!

Zero pounds is correct. Sam doesn't get an allowance. For the record, Jeff gets two pounds a week and Pete gets four.

UK Version

Yes! You're quids in!

£0 is correct. Sam doesn't get any pocket money. For the record, Jeff gets £2 a week and Peter gets £4.

A big thanks to http://professorlayton3walkthrough.blogspot.com