perplexus.info :: Numbers : Sixty-three

Sixty-three (Posted on 2024-06-27)

Find an expression that equals 63 using the digits 1, 7, 8, and 9.

Each digit must be used exactly once. You must use only addition, subtraction, multiplication, and division.

Digits may not be concatenated (one may not put 1 and 4 together to make 14). Parentheses (brackets) are allowed.

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

There are at least 2 valid solutions. These are:
9 ------ = 63 8/7 -1
And,
7 ------- = 63 1-8/9

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

Subject	Author	Date
Solution	Brian Smith	2024-06-28 11:06:19
Proposed solution	Charlie	2024-06-28 00:01:16

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