Question

after subtracting 8% of a number from the number we get 150.88. what was the number? what percentage of 150.88 must be added to it in order to get the number?​

Answer 1

Step-by-step explanation:

Let the number be x

So,

X - (8% of X) = 150.88

= X - 8x/100 = 150.88

= (100x - 8x)/100 = 150.88

= 92x/100 = 150.88

= 92x = 150.88 × 100

= x = 15088/92 = 164

So, the original number is 164

Now,

Let y% of 150.88 be added to 150.88 to get the original number

Where, y = difference between 164 and 150.88 i.e. 13.12

Y% = 13.12 × 100/150.88

Y% = 8.69 ~~ 8.7 %

So approx 8.7 % of 150.88 must be added to it to get the original number.

164 - 150.88 = 13.12

It y%