Question

the strength of a school increased by 20% in one year and described by 20% in the next year is the final strength greater or lesser than the original one and by the how much percentage​

Answer 1

Answer:

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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