perplexus.info :: Numbers : Dimsums LTD

Dimsums LTD (Posted on 2017-10-16)

A fast food restaurant sells dimsums in boxes of 7 and 3.
What’s the greatest number of dimsums a person cannot buy?
Generalize it for p and q where p and q are relatively prime.

Source: Alok Goyal (Stellaris VP, Ex-Helion VC) puzzle blog

Submitted by Ady TZIDON

Rating: 3.0000 (1 votes)

Solution: (Hide)

11 (eleven) is the answer
All numbers above it will be on (at least)one of the following lists:
...12,15,18,...no boxes of 7.
...13,16,19,...one box of 7.
14,17,20...-2 boxes of 7.

11 -yok!

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
Conclusion	Tommie Marshall	2022-04-19 22:06:32
re: solution	Stephanie Vincent	2020-01-18 04:03:18
solution	Paul	2017-10-16 10:40:41

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