**Question:**

Write each of the following statements in the form ‘if …. then’ :

(i) A rhombus is a square only if each of its angles measures $90^{\circ}$.

(ii) When a number is a multiple of 9 , it is necessarily a multiple of $3 .$

(iii) You get a job implies that your credentials are good.

(iv) Atmospheric humidity increase only if it rains

(v) If a number is not a multiple of 3 , then it is not a multiple of 6 .

**Solution:**

(i) If each of the angles of a rhombus measures 90°, then the rhombus is a square.

(ii) If a number is a multiple of 9, then the number is multiple of $3 .$

(iii) If you get a job, then your credentials are good.

(iv) If it rains, then the atmospheric humidity increases.

(v) If a number is a multiple of 6, then it is a multiple of $3 .$

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