A nonzero number is such that nine times of it is equal to the square of its 75 percent, the number is?

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13 Sep 2010 find the number A nonzero number is such that nine times of it is equal to the square of its 75 percent, the number is?: OPtion
1) 16
2) 4
3) 8
4) 10
5) 9
6) 6
7) 7.5
8) 12
9) 15
10) 1; Correct Option: 1 Best Solution (8)

Dr.Dipin Singh 14 years AGO

9x= (3x/4)^2
then x=16,0

Like? Yes (1) | No

Karthik Pandiyan 14 years AGO

Let x be non zero number
given 9x=(x(3/4))^2
solving the above equation , we get
x=16

Like? Yes (1) | No

SUDESHNA SEN 14 years AGO

Let the number be x.
Then, 9x= [(3/4)x]^2
or, 9x= (9/16)x^2
or, (9x^2-144x)=0
or, 9x(x-16)=0
or, x=0, 16.
Since x is nonzero, so x=16..... Option 1)

Like? Yes (1) | No

Mamon Sengupta 14 years AGO

Let the number be x.
Then, 9x= [(3/4)x]^2
or, 9x= (9/16)x^2
or, (9x^2-144x)=0
or, 9x(x-16)=0
or, x=0, 16.
Since x is nonzero, so x=16..... Option 1)

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Amar 14 years AGO

16*9= (16*3/4)^2 = 12^2=144

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Tridib Das 14 years AGO

Let the number be x.
Therefore, 9x = (75x/100)^2
or, x/16 = 1
or, x = 16.
Thus the option is (1) 16.

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Achelal Sharma 14 years AGO

9x=(0.75x)2

x=16

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Ankit Pandey 14 years AGO

9x=(75% of x)^2
9x=(3x/4)^2
9x=9x^2/16
9x^2=144x
9x^2/9x=144x/9x (dividing both sides by 9x)
x=16 Ans.

Like? Yes (1) | No

Dimple

India

Punjab

Time: 00:01:33

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A nonzero number is such that nine times of it is equal to the square of its 75 percent, the numbe

M4maths Previous Puzzles

13 Sep 2010 find the number