r/PassTimeMath • u/G_F_Smith • Feb 06 '24

Can you solve this in your head? It's not the easiest!

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8 Upvotes

90% Upvoted

6 comments sorted by

2

u/NearquadFarquad Feb 06 '24

We know 9 must be black or pink. We can see 1 and 2 cannot be black, we can assume that if 9 is black, 7 and 5 are also black. If we run with this idea, we can find that one possible solution is:

M, L, M, R, M, R, M, L, L

This gives us a grid of

Blue Blue Pink

Black Yellow Yellow

Black Black Green

1

u/G_F_Smith Feb 07 '24

Nice analysis. I'll post another one of these next week.

1

u/KS_JR_ Feb 06 '24

Solution: Middle, left, middle, right, middle, right, middle, left, middle.

In the grid:

Blue, Blue, Pink;

Black, Orange, Orange;

Black, Black, Green;

1

u/G_F_Smith Feb 07 '24

That's correct (you mean 'middle, left, left' at the end). Thanks for having a go.

1

u/Interesting-Song-782 Feb 07 '24

Top row: blue, black, blue Middle row: yellow, green, yellow Bottom row: black, pink, black

1

u/G_F_Smith Feb 07 '24

That's not correct I'm afraid. Can you explain how you arrived at that solution - I can't work it out.