KCSE MATHEMATICS QUESTIONS AND SOLUTIONS ~ Topically Analyzed
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Form 4 Mathematics
(b) Okello bought 5 Physics books and 6 Mathematics books for a total of Ksh 2 440.
Ali bought 7 Physics books and 9 Mathematics books for a total of Ksh 3 560. (i) Form a matrix equation to represent the above information. (ii) Use matrix method to find the price of a Physics book and that of a Mathematics book. (c) A school bought 36 Physics books and 50 Mathematics books. A discount of 5% was allowed on each Physics book whereas a discount of 8% was allowed on each Mathematics book. Calculate the percentage discount on the cost of all the books bought.
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Form 4 MathematicsForm 4 Mathematics
(b) In a certain week a businessman bought 36 bicycles and 32 radios for total of Kshs 227 280. In the following week, he bought 28 bicycles and 24 radios for a total of Kshs 174 960
Using matrix method, find the price of each bicycle and each radio that he bought (c) In the third week, the price of each bicycle was reduced by 10% while the price of each radio was raised by 10%. The businessman bought as many bicycles and as many radios as he had bought in the first two weeks. Find by matrix method, the total cost of the bicycles and radios that the businessman bought in the third week. Form 3 MathematicsForm 3 Mathematics | Topical Questions and Answers
Matrix p is given by:
Related Questions on MatricesA quadrilateral ABCD has vertices A (4, -4), B(2, -4), C(6, -6) and D (4, -2)
A matrix A is given by \[A = \bigl(\begin{smallmatrix} x & 0\\ 5&y \end{smallmatrix}\bigr)\] Given that\[A = \begin{bmatrix} 1 & 3\\ 5& 3 \end{bmatrix}, B = \begin{bmatrix} 3 & 1\\ 5 & -1 \end{bmatrix}, C = \begin{bmatrix} p & 0\\ 0 & q \end{bmatrix}\]
and AB = BC determine the value of P
A and B are two matrices. If\[A=\begin{bmatrix} 1 &2 \\ 4 & 3 \end{bmatrix}\]
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