Linear Equations in Two Variables (10)
Graphical Method of Solution, Algebraic Methods of Solving - Substitution Method, Elimination Method.
Find the values of a and b for which the system of linear equations
Find the values of a and b for which the system of linear equations 3x + 4y = 12, (a + b)x + 2(a - b)y = 24 has infinite number of solutions.
A lending library has a fixed charge for first three days
A lending library has a fixed charge for first three days and an additional charge for each day thereafter. Rittik paid ₹27 for a book kept for 7
...If the pair of linear equations x − y = 1, x + ky = 5 has a unique solution x = 2, y = 1, then the value of k is
If the pair of linear equations x - y = 1, x + ky = 5 has a unique solution x = 2, y = 1, then the value of k is
...The pair of linear equations x + 2y + 5 = 0 and −3x − 6y + 1 = 0 has
The pair of linear equations x + 2y + 5 = 0 and -3x - 6y + 1 = 0 has
- a unique
In Fig. 1, ABCD is a rectangle. Find the values of x and y
In Fig. 1, ABCD is a rectangle. Find the values of x and y.
...
Sumit is 3 times as old as his son
Sumit is 3 times as old as his son. Five years later, he shall be two and a half times as old as his son. How old is Sumit at present ?
The larger of two supplementary angles exceeds the smaller by 18°
The larger of two supplementary angles exceeds the smaller by 18°. Find the angles.
Find the value(s) of k so that the pair of equations x + 2y = 5 and 3x + ky + 15 = 0
Find the value(s) of k so that the pair of equations x + 2y = 5 and 3x + ky + 15 = 0 has a unique solution.