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2015-05-20T21:17:58+08:00

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Interest=Principal*Rate*Time \\ 450= 3000*Rate*1 \\  \frac{450}{3000} =Rate \\ 0.15=Rate

Therefore the rate is 0.15*100=15%
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2015-05-21T14:24:04+08:00

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
To get the percentage, divide the interest by the amount, simply:

P 450 divided by P 3000 is 0.15

changing to percentage, decimal multiplied by 100, simply:

0.15 x 100 =15%

Hope this helps =)
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