Question

a number is increased by 10% and then reduced by 10% after this operation by what percentage is the number reduced or increased​

Answer 1

Answer:

let the number be 100 then,

10% of 100 = 10/100×100 = 10

after 10% increase = 100+10 = 110

10% of 110 = 10/100×110 = 11

after 10% decrease of new number= 110-11 = 99

so, 100 is reduced by 1%

CHECK IT OUT!