Question

Q22. If we subtract 1/2 from a
number and multiply the result by 1/2
we get 1/8 then the number is
O 1/2
O 1/4
O 3/4
O None of these​

Answer 1

Step-by-step explanation:

1/4 is the right answer

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Answer 2

Step-by-step explanation:

Given :-

If we subtract 1/2 from a

If we subtract 1/2 from anumber and multiply the result by 1/2

If we subtract 1/2 from anumber and multiply the result by 1/2we get 1/8 .

To find:-

find the number.

Solution:-

Let the number be X

Subtract 1/2 from the number=X-1/2

=>X-1/2

=>(2X-1)/2

Multiply the result by 1/2=(2X-1)/2×(1/2)

=>(2X-1)/4

Then the result is 1/8

=>(2X-1)/4=1/8

applying cross multiplication then

=>8(2X-1)=1×4

=>16X-8=4

=>16X=4+8

=>16X=12

=>X=12/16

=>X=3/4

Answer:-

The required number=3/4

Check:-

Number =3/4

subtract 1/2 from it =3/4-1/2

=>(3-2)/4

=>1/4

and multiply it by 1/2=1/4×1/2=1/8

The result is 1/8 .

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