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How can you use four of the digit 9 and any of +, -, x and / to make 100?

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posted Jul 17 by anonymous

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1 Solution

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99 + (9/9) = 99 + 1 = 100

solution Jul 17 by Tejas Naik



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0 votes

Use the digits from 1 up to 9 and make 100.

Follow the rules.
=> Each digit should be used only once.
=> You can only use addition.
=> For making a number, two single digits can be combined (example, 4 and 2 can be combined to form 42 or 24)
=> A fraction can also be made by combining the two single digits (example, 4 and 2 can be combined to form 4/2 or 2/4)

How can we do this ?

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Without the use of any mathematical operators like addition, subtraction, multiplication or division, can you make the number '7' even ?

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? + ? + ? + ? + ? = 30

You have to fill numbers in place of question marks. The numbers that you can use are 1, 3, 5, 7, 9, 11, 13 and 15. You can repeat the numbers if you like.

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