Find canoeist-s rate in still water
The speed of current in the stream is 2 mi/hr. It takes the canoeist 24 minutes longer to paddle 3.2 miles upstream than to paddle same distance downstream. Find canoeist's rate in still water?
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How many cups of grapefruit juice should be added to 30 cups of the punch which is 8% grapefruit juice to get the punch which is 10% grapefruit juice?
A bank manager wanted to determine the mean number of transactions businesses make per month. For a sample of 55 businesses, he found that mean number of transaction per month to be 32 and the standard deviation to be 7.5 transactions.
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