Question

The number 0.4 in p/q form is ..... Choose the correct alternative answer for the question given below.
(A) 4/9
(B) 40/9
(C) 3 6/9
(D) 36/9

Answer 1

Solution :

It is 0.4 bar ,

Let x = 0.444....----( 1 )

Multiply ( 1 ) with 10, we get

10x = 4.444......------( 2 )

Subtract ( 1 ) from (2 ) ,

9x = 4

=> x = 4/9

Therefore ,

x = 0.4444.... = 4/9

Option ( A ) is correct.

•••••

Answer 2

Answer:

4/9

solution, Let x=0.4444......

multiplying first equation by 10

10x=4.4444

10x=4.4444.....

- x=0.4444.....

=9x=4.0000.....

x=4/3