SOLUTION: 4 out of 40 boys failed in an examination. what percentage of boys failed and what percentage passed the examination?

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Question 280346: 4 out of 40 boys failed in an examination. what percentage of boys failed and what percentage passed the examination?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
4/40=.1 or 10% failed.
1-.1=.9 or 90% passed.