Last answered:

01 Nov 2022

Posted on:

29 Oct 2022


Problem 3, question "c"

Dear authors,

Can you please specify why are we allowed to consider two bedrooms as one bedroom?
If we think about rooms as positions, they are 2 different ones. Are you sure we can reduce the initial number of positions by just 1 instead of 2?

Kind regards,

1 answers ( 0 marked as helpful)
Posted on:

01 Nov 2022


Hey Vladimir,

Thank you for reaching out!

Since the two bedrooms will be painted in the same color, we need to choose 6 colors among all 9 options. This is equivalent to considering 6 rooms instead of 7 and reaches the same solution, namely,
Hope this helps! Let me know if something remains unclear!

Kind regards,
365 Hristina

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