X% of X is (X/10) then X is (X is a non zero number)?

M4maths Previous Puzzles

14 Jun 2010 find the X

X% of X is (X/10) then X is (X is a non zero number)?

OPtion

1) 1
2) 10
3) 100
4) 50
5) 20
6) 60
7) 80
8) 200
9) 1000
10) 25

Solution

(X * X /10) = (X/10)
Implies X/100 = 1/10
Implies 10X = 100
Implies X = 10

Correct Option: 2 Best Solution (16)

Dr.Dipin Singh   14 years AGO

X% of X is (X/10) means

(X/100) * X = (X/10)...
or
x^2/100 = x/10 ...
or
X=10 .. option 2

Like? Yes (1) | No   

Karthik Pandiyan   14 years AGO

X% of X =X/10
(X/100)*(X)=X/10
hence if (X=10) means equation will be equal
so X=10

Like? Yes (1) | No   

Pargat Pal Singh   14 years AGO

(X/100) * X = (X/10)
or
x^2/100 = x/10
X^2/X = 100/10
x=10
Hence
X=10 .. option 2

Like? Yes (1) | No   

Jeen Philip   14 years AGO

(X/100) *X = X/10
so X =10

Like? Yes (1) | No   

sivakumar   14 years AGO

x % of x means (x/100)*x = x/10; x=10;

Like? Yes (1) | No   

Bawa   14 years AGO

(X/100) * X = (X/10)
or

X^2/X = 100/10
X=10

.. option 2

Like? Yes (1) | No   

S. Singh   14 years AGO

x*x/100 = x/10 , then x=10

Like? Yes (1) | No   

SUDESHNA SEN   14 years AGO

X% of X is (X/10)
Or, X*(X/100)= (X/10)
Or, (X^2/100)= (X/10)
Or, 10X^2= 100X
Or, X^2= 10X
Or, X(X-10)=0
Therefore, X=0,10
But X is a non zero number, so X=10..... Option 2)

Like? Yes (1) | No   

Trishita Dasgupta   14 years AGO

X% of X is (X/10)
Or, X*(X/100)= (X/10)
Or, (X^2/100)= (X/10)
Or, 10X^2= 100X
Or, X^2= 10X
Or, X(X-10)=0
Therefore, X=0,10
But X is a non zero number, so X=10..... Option 2)

Like? Yes (1) | No   

Mamon Sengupta   14 years AGO

X% of X is (X/10)
Or, X*(X/100)= (X/10)
Or, (X^2/100)= (X/10)
Or, 10X^2= 100X
Or, X^2= 10X
Or, X(X-10)=0
Therefore, X=0,10
But X is a non zero number, so X=10..... Option 2)

Like? Yes (1) | No   

ASHOK ROY   14 years AGO

X% of X is (X/10)
Or, X*(X/100)= (X/10)
Or, (X^2/100)= (X/10)
Or, 10X^2= 100X
Or, X^2= 10X
Or, X(X-10)=0
Therefore, X=0,10
But X is a non zero number, so X=10..... Option 2)

Like? Yes (1) | No   

kumar prabhat   14 years AGO

x*x/100=x/10

x=10

Like? Yes (1) | No   

Atul   14 years AGO

X% of X is (X/10) then X is 10.

check
10% of 10 is 1 which is equal to (X/10) = 10/10 =1

Like? Yes (1) | No   

Shikha   14 years AGO

X% of X is (X/10) then X is (X is a non zero number)?
10% of 10 is 1.
(10/10)=1. then X is 10.

Like? Yes (1) | No   

Navin Ranjan   14 years AGO

(X/100)*X=X/10
=>X=10

Like? Yes (1) | No   

Achelal Sharma   14 years AGO

answer is 10

Like? Yes (1) | No