21. The salaries of two persons are equal. If the salary of one of them is increased by 20% and the salary of the other is decreased by 20%, find the percentage change in the total salary of the two persons.
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Answer:
I think 40 percent
Step-by-step explanation:
Because 20 per decrease and 20 per increases so total is 40 per
Answered by
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Step-by-step explanation:
let the salary be 100
increase by 20 % 120
decrease by 20% 80
total percentage change= 120+80/200*100= 100
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