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Form 4 Mathematics Paper 1 Exam Revision Questions With Answers Set 2

A piece of wire can be folded into a rectangle whose dimensions are such that its length is 8 cm longer than its width. The area of the rectangle so formed is # 468cm^2#.
a) Determine
i)the dimensions of the rectangle
ii)the perimeter of the rectangle
b)The same piece of wire can also be folded into a circle. Taking π=22/7, find the radius of the circle and hence calculate its area.

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79. Jerusha invested sh 50 000 at the rate of 10% per annum compound interest for #2 1/2# years. Kemuto invested sh 35 000 at the rate of 15% per annum simple interest for the same period. Whose investment earned more interest and by how much?
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