Question

A number is increased by10% and the increased number is decreased by 10%. Show that the net decrease is 1%​

Answer 1

Step-by-step explanation:

let the number be 100

if we increase 10%, then the result will be 100+10=110

then decrease 10% of 110 from 110

ie., 110 - (110*[10/100])

     = 110 - 11 = 99

then the net decrease from the original no. (ie.,100) is 100-99 = 1

taken the original no. as 100 we can say the net decrease is 1%