# NCERT Mathematics Class 10 Exemplar Ch 3 Pair of Linear Equations in Two Variables Part 5

Get unlimited access to the best preparation resource for CBSE : fully solved questions with step-by-step explanation- practice your way to success.

9. Solve the following pairs of equations:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

(iv) (v) (vi)

(vii)

10. Find the solution of the pair of equations and Hence, find λ, if

11. By the graphical method, find whether the following pair of equations are consistent or not. If consistent, solve them.

(i)

(ii)

(iii)

Answer: (i) consistent; , (ii) inconsistent

(iii) consistent. The solution is given by , where x can take any value, i.e., there are infinitely many solutions.

12. Draw the graph of the pair of equations and Write the vertices of the triangle formed by these lines and the y-axis. Also find the area of this triangle.

13. Write an equation of a line passing through the point representing solution of the pair of linear equations and . How many such lines can we find?

14. If is a factor of , then find the values of a and b given that .