Question

If a number x is multiplied by 25% of itself gives another number which is 400% more than x then the value of x is ?

Answer 1

Answer:

20

Option (C)

Step-by-step explanation:

Let the number be x

When x is multiplied by 25% of itself

= x (25/100 * x)

= $(25/100) (x^2)$

Given that

$(25/100) (x^2)$ = 400 % more than x

400 % more than x = (400/100)(x) + (x)

$(25/100) (x^2)$ = 4x + x

$(25/100) (x^2)$ = 5x

By cancelling x on both sides we get :

25/100(x) = 5

By transposing 25/100 to the other side we get :

x = 100/25 (5)

x = 4/1(5)

x = 4 x 5

x = 20

Option (C)

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Answer 2

Answer:

20

Step-by-step explanation: