Assume the cost of scale x and that of compass y and solveÂ the question according to the given question .

Just check the ratio of the coefficients of the given pair of the linear equations ,for checking out the consistency of the given pair of linear equations and then find the given pair of linear equations by graphical method.

Can we recall that sum of two supplementary angle equals 180Â°

Assume the cost of bat x and that of ball y and solveÂ the question according to the given question .

Suppose that fathers and sons present age be x and y respectively.Now form equation and find age of the Father and Son.

Let one number be x,and another be y, and solve the so formed equations.

Let one numberÂ be x and other be y .Now frame linear equation according to the given condition . Solve the equations graphically.

Can we recall that sum of two supplementary angle equals 180Â°

Take the cost of pencil and pen x and y respectively and then form the linear equation in two variable . Work out the solution for the given equation by graphical method .

Let the length and width of the rectangle be x and y respectively .Then use the formulae for the perimeter of the rectangle.