Question

The difference between increasing a number by 5% and decreasing it by 5% is 70. The number is ____________. ​

Answer 1

Answer:

THE NO. IS 700.

Step-by-step explanation:

LET NO. BE X

( 1-5/100 ) × X

= ( 95/100 ) × X

= 95X /100

LET NO. B X

( 1+5/100 )

= ( 105/100 ) × X

= 105X /100

(105X /100) - (95X /100) = 70

=> 10X /100 = 70

=> 10X = 7000

=> X = 700.