1.Construct a linear equation from the following statements. (i) The quotient of three times a number and 5 is 9.
(ii) One-third a number added to 5 gives 25.

2. Solve the following equations.

15(x-1) – 3(x-2) + 7(x+3) = 0

3. What do you mean by SAS and RHS?

4. Find whether the pairs of triangles in each question below are congruent or not. If yes then state the criterion of congruence in each case.