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Sagot :
Answer:
15%
Step-by-step explanation:
Given that:
Number of people who went to swimming pool in the first week = 1120
In second week, there are 100 fewer people, so
Number of people who went to swimming pool in the second week = 1020
In third week, there are 140 more people, so
Number of people who went to swimming pool in the third week = 1160
In fourth week, there are 208 fewer people, so
Number of people who went to swimming pool in the fourth week = 952
To find:
Percentage decrease in the number of people who went to the pool over the four weeks?
Solution:
Initial value = 1120
Final value = 952
Decrease in the value = Final value - Initial value
Decrease in the value = 1120 - 952 = 168
To find the percentage, we need to take the initial value in the consideration.
Therefore, percentage decrease is:
[tex]\dfrac{Decrease}{Initial\ value}\times 100[/tex]
[tex]\Rightarrow \dfrac{168}{1120}\times 100\\\Rightarrow \bold{15\%}[/tex]
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