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Algebra Level 1

What number when divided by 10 gives the same result as subtracting 10 from it?


The answer is 11.1111.

Chung Kevin by Chung Kevin , 45, Australia

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2 solutions

Akash Gupta
Jan 30, 2015

Let the number be x
Then A/Q x/10=x-10
=>x=10x-100
=>9x=100/9=11.111111...
So we can round off.
The answer is 11.111


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Nicely done :)

Chung Kevin - 6 years, 4 months ago

I did the same way too.This question is nice and easy for me.

Frankie Fook - 6 years, 4 months ago

Let x be the number. Then x 10 = x − 10 ⟹ x = 100 9 = 11.111 \text{Let x be the number. Then } \dfrac{x}{10}=x-10~~\\\implies~x=\dfrac{100}{9} = 11.111

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