Question

the strength of a school increased by 20%in one year, and decreased by 20% in the next year . is the final strength of the school is greater or less then the original one, and by how much in percent​

Answer 1

Answer:

Step-by-step explanation:

suppose strength= 100

first year increase by 20% , total strength is=120

second year decrease by 20%, total strength decrease =24

total strength 2nd year is= 120-24=96

strength decreases by 4% against first year