Question

a number when 35 is subtrated from it, reduce to its 80 percent. what is four-fifth of that number.​

Answer 1

The number is = 175

And it's four-fifths = 140

Step-by-step explanation:

Let's assume that the number = X

And if we subtract 35 out of it, it is reduced to 80%

80% of X will be = X×80/100

so,

• => X - 35 = X×80/100

• => X - 35 = X4/5

• => X - 35 = 0.8 X

Now moving "X" on left side and "35" to the right side

• => X-0.8X = 35

Now subtracting 0.8x from 1x, we get

• => 0.2 X = 35

Now dividing 35 by 0.2

• => X=35/0.2

we get the value of X

• => X=175

And now four-fifth of this number will be

• => 175×4/5

• => 140

The Answer for this question is 140.