shivraj

In a survey, 36% of the students said thee keep an electronic diary. There were 900 students who kept an electronic diary. How many students were in the survey?

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shivraj

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6

matricked

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900/36 *100 =25*100=2500

shivraj

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R u sure?

AriPotta

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yea, that's right

matricked

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see out of 100% only 36% have that electronic diary
so 900 is just 36% and we need to find 100%

AriPotta

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|dw:1349680854965:dw|

AriPotta

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so 90000 = 36x
x = 2500

shivraj

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thnks

AriPotta

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no problem