• # question_answer Directions: Match Column-I with Column-II and select the correct answer using the codes given below the columns. A) A ? r; B ? p; C ? q; D ? s B) A ? r; B ? s; C ? p; D ? q C) A ? p; B ? r; C ? s; D ? q D) A ? s; B ? q; C ? r; D ? p

Solution :

A: $\frac{2}{7}+\frac{3}{4}\,-\frac{1}{2}\,=\frac{8+21-14}{28}=\frac{15}{28}$ B: $\frac{4}{7}+\frac{3}{2}+\frac{1}{4}\,=\frac{16+42+7}{28}=\frac{65}{28}$ C: $\frac{6}{7}\times \left( \frac{3}{4}+\frac{9}{2} \right)=\frac{6}{7}\times \left( \frac{3+18}{4} \right)$ $=\frac{6}{7}\times \frac{21}{4}\,=\frac{126}{28}$ D: $\frac{5}{4}\times \,\frac{1}{7}=\frac{5}{28}$

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