SOLUTION: a certain sum of money becomes double of itself in 6 years on simple interest in what time it will be 10times of itself

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Question 1079419: a certain sum of money becomes double of itself in 6 years on simple interest in what time it will be 10times of itself
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+A+=+P%2A%28+1+%2B+r%2At+%29%0D%0A%7B%7B%7B+2P+=+P%2A%28+1+%2B+r%2A6+%29+
+2+=+1+%2B+6r+
+6r+=+1+
+r+=+1%2F6+
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+A+=+P%2A%28+1+%2B+r%2At+%29+
+10P+=+P%2A%28+1+%2B+%281%2F6%29%2At+%29+
+10+=+1+%2B+%281%2F6%29%2At+
+%281%2F6%29%2At+=+9+
+t+=+54+
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The money will be 10X itself in 54 yrs