The strength of a school increased and decrease in every alternate year by 10%. It started with increase in 2000. Then the strength of the school in 2003 as compared to that in 2000 as Optionsincreased by 8.9%decreased by 8.9%increased by 9.8%decreased by 9.8%
Question
The strength of a school increased and decrease in every alternate year by 10%. It started with increase in 2000. Then the strength of the school in 2003 as compared to that in 2000 as Optionsincreased by 8.9%decreased by 8.9%increased by 9.8%decreased by 9.8%
Solution
The strength of the school increases and decreases by 10% every alternate year, starting with an increase in 2000.
Let's assume the initial strength of the school in 2000 is 100 (for simplicity of calculation).
In 2001, the strength increases by 10%, so it becomes 110 (100 + 10% of 100).
In 2002, the strength decreases by 10%, so it becomes 99 (110 - 10% of 110).
In 2003, the strength increases by 10% again, so it becomes 108.9 (99 + 10% of 99).
So, comparing the strength of the school in 2003 to that in 2000, it has increased by 8.9%. Therefore, the correct option is "increased by 8.9%".
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