List of top Mathematics Questions on Linear Equations asked in CBSE CLASS XII

Let \( 2x + 5y - 1 = 0 \) and \( 3x + 2y - 7 = 0 \) represent the equations of two lines on which the ants are moving on the ground. Using matrix method, find a point common to the paths of the ants.
A shopkeeper sells 50 Chemistry, 60 Physics and 35 Maths books on day I and sells 40 Chemistry, 45 Physics and 50 Maths books on day II. If the selling price for each subject book is \( \text{Rs } 150 \) (Chemistry), \( \text{Rs } 175 \) (Physics) and \( \text{Rs } 180 \) (Maths), then find his total sale in two days, using matrix method. If cost price of all the books together is \( \text{Rs } 35,000 \), what profit did he earn after the sale of two days?
A linear programming problem deals with the optimization of a/an: