how to get 24 out of 4 numbers

👨🏻‍🏫 學術台數學

[匿名]

2009-04-01 10:53 am

(5 , 5 , 5 , 3)
+ - * / is all allowed
Placing numbers as well
For example ( 15 , 51 , 1.5 , 5.1 etc )
But the final answer has to be 24

回答 (3)

bean_bottom_2

2009-04-01 4:50 pm

✔ 最佳答案

5^3 -5
-------
5

This is the same as (5 X 5 X 5 - 5) / 5. When you write 5^3, it is 53 with a very small 3 on the top right hand corner.

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山巔一石一壺酒

2009-04-02 6:52 am

可參考

http://www.semple.edu.hk/mpn185/misc/math24/worksheet/main/worksheet.pdf

在不能使用次方或小數點的限制下是無解的

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用戶9170

2009-04-02 12:33 am

Without using ^ :

(5.3 - .5)*5 = 24

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