perplexus.info :: Numbers : Naughty Nimble Nines 2

Naughty Nimble Nines 2 (Posted on 2023-09-27)

Use precisely four 9's, and build an expression that works out to 161.

(I) At least one 9 can be turned upside down to 6.

(II) None of the 9s can be turned around to 6.

Submitted by K Sengupta

Rating: 4.0000 (1 votes)

Solution: (Hide)

I.81=9*9 80=6!/9. so 161=9*9+6!/9 II. A. 161=9*9+((sqrt9)!)!/9 . B. (9+9)*9 - .9 = 161
Refer to the comments for additional solutions.

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

Subject	Author	Date
re(2): One more	Ady TZIDON	2023-09-27 14:00:09
re: One more	Charlie	2023-09-27 09:57:05
One more	Ady TZIDON	2023-09-27 09:09:18
re: a solution	Ady TZIDON	2023-09-27 08:53:23
a solution	Charlie	2023-09-27 08:39:58
Quite easy	Ady TZIDON	2023-09-27 08:26:53

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