A matrix is a rectangular array of numbers organised in columns and rows. The elements or entries of the matrix are the numbers. Matrixes are used in many branches of mathematics, including engineering, physics, economics, and statistics. Matrices are also used in computer graphics to express image rotations and other transformations.
What is Matrix Arrangements?
A matrix is an arrangement of pieces in a rectangular shape. Real or complex integers, variables, or other symbols arranged in a rectangular format can be used as elements. Horizontal rows and vertical columns make up a matrix.
Matrix Arrangement Tricks
1.A table is drawn in this manner, with the first column reserved for objects or individuals whose properties are stated in the problem. The remaining columns are used to list the object’s numerous characteristics.
2.A table is created, with the first column devoted to the objects or individuals whose properties are specified in the problem. The remaining columns are used to list the object’s numerous characteristics.
3.Now start reading, putting up the direct information linked with the object supplied in the problem, using ‘+’ for yes and * for no.
4.We must evaluate the relationship between the given information and the other qualities in the situation.
Matrix-Based Puzzles Examples
Seven kids were ranked one above the other: Arav, Roma, Bhavy, Kaka, Pran, Nair, and Manav. In mathematics, each of these pupils received a different number of points ranging from 10-90. Because these kids’ rankings were based on total marks, it’s possible that a student with lower math scores was placed higher than a student with higher math scores.
Only four students were ranked higher than Arav. Between Arav and the student who scored 41 points and was ranked below Box Arav, two pupils were ranked. Kaka received three times the number of points that Roma did. Bhavy received 50 points and was not placed first. Manav received a perfect cube of a number in terms of marks. Between the students who earned 41 and 39, just one student was ranked. Kaka has received fewer points than Arav. One of the pupils received a score of 78. Between a student who got 64 and Bhavy, five pupils were ranked. Manav was listed right above Pran, although he received lower marks. Kaka was neither placed above nor below Roma. Between Kaka and Nair, three students were ranked. Kaka was ranked higher than Nair.
1. What is the total of Bhavy and Arav’s marks?
- 89
- 114
- 128
- 90
None of these apply.
Option b is the correct answer.
Below is a table with the solutions.
Rank | Student | Marks scored |
1 | Arav | 64 |
2 | Kaka | 39 |
3 | Manav | 27 |
4 | Pran | 41 |
5 | Roma | 13 |
6 | Nair | 78 |
7 | Bhavy | 50 |
2. There are seven people – Rio, Regina, Rekha, Divya, Diya, Jiya, and Ritu – who teach a variety of disciplines, including Math, Politics, Tamil, Mechanical, Computer, French, and English, but not necessarily in that sequence.
Beginning on Monday, they teach on various days of the week. White, Yellow, Red, Black, Brown, Green, and Pink are some of their favourite colours, but not necessarily in that order. Regina, who enjoys Green, teaches Math and English on the fourth day of the week. Between Regina and Jiya, there are two teachers, neither of whom teaches on the first day of the week.
Rio and Rekha are separated by one person. However, Rekha does not teach on the first or third days of the week. Rekha is a math teacher who enjoys the colour yellow. The person who teaches Tamil like the colour red and teaches on the last day of the week. On days when Divya does not teach, either before or after Rio’s classes, because Rio does not like the colours Brown, White, or Black.
Ritu takes over after Rekha and prefers the colour white. Diya dislikes the colour brown and teaches French. Rio does not teach Computer Science or Mechanical Engineering. The person who teaches Politics does so immediately following the day when Math is taught.
Below is a table with the solutions.
Day | Person | Colour | Subject |
Monday | Divya | Brown | Mechanical/Computer |
Tuesday | Diya | Black | French |
Wednesday | Rio | Pink | English |
Thursday | Regina | Green | Mechanical/Computer |
Friday | Rekha | Yellow | Maths |
Saturday | Ritu | White | Politics |
Sunday | Jiya | Red | Tamil |
Conclusion
Being organised is especially important for students because it teaches them how to prioritise tasks, set and achieve goals, and manage stress. Good organising abilities make it easier to interact with others and boost production and efficiency.