Question

4. At 12:00 p.m., Jane leaves her house and drives north to the beach. She arrives at 1:30 p.m. Also leaving at 12:00 p.m., her brother Paul leaves her house and drives south to a state park. He arrives at 2:30 p.m. The driving distance from the beach to the state park is 240 mi. Jane and Paul drove at the same speed. What was their speed? Answer: (60mph)

Answer 1

Write a C program to compute Matrix Multiplication of two matrices. Use one dimensional array to store each matrix, where each row is stored after another. Hence, the size of the array will be a product of number of rows times number of columns of that matrix. Get number of row and column from user and use variable length array to initialize the size of the two matrices as well as the resultant matrix. Check whether the two matrices can be multiplied or not. Write a getMatrix() function to generate the array elements randomly. Write a printMatrix() function to print the 1D array elements in 2D Matrix format. Also, write another function product(), which multiplies the two matrices and stores in the resultant matrix. With SEED 5, the following output is generated.

Sample Output

Enter the rows and columns of Matrix A with space in between: 3 5

Enter the rows and columns of Matrix B with space in between: 5 4

Matrix A:

   8     6     4     1     6

   2     9     7     7     5

   1     3     1     1     2

Matrix B:

   9     5     4     5

   9     9     8     1

   4     4     3     5

   2     6     2     1

   4     5     2     4

Product AxB:

168   146   106    91

161   186   125    81

50    52    37    22

In conclusion, the answer is 60mph

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