question_answer 47)

Find: (i) \[\text{7}\div \text{3}.\text{5}\]                         (ii) \[\text{36}\div 0.\text{2}\]            (iii) \[\text{3}.\text{25}\div 0.\text{5}\]                 (iv) \[\text{3}0.\text{94}\div 0.\text{7}\] (v) \[0.\text{5}\div 0.\text{25}\]               (vi) \[\text{7}.\text{75}\div 0.\text{25}\]  (vii) \[\text{76}.\text{5}\div 0.\text{15}\]             (viii) \[\text{37}.\text{8}\div \text{1}.\text{4}\] (ix) \[\text{2}.\text{73}\div \text{1}.\text{3}\]

Answer:

                (i) \[7\div 3.5=\frac{7}{35}=\frac{7.0}{3.5}=\frac{70}{35}=\frac{2}{1}=2\]                 (ii) \[36\div 0.2=\frac{36}{0.2}=\frac{36.0}{0.2}=\frac{360}{2}=180\]                 (iii) \[3.25\div 05=\frac{3.25}{0.5}=\frac{3.25}{0.50}=\frac{325}{50}=\frac{13}{2}=6.5\]                 (iv) \[30.94\div 0.7=\frac{30.94}{0.7}=\frac{30.94}{0.70}=\frac{3094}{70}\]\[=\frac{221}{5}=44.2\] (v) \[0.5\div 0.25=\frac{0.5}{0.25}=\frac{0.50}{0.25}=\frac{50}{25}=2\] (vi) \[7.75\div 0.25=\frac{7.75}{0.25}=\frac{775}{25}=\frac{31}{1}=31.0\] (vii) \[76.5\div 0.15=\frac{76.5}{0.15}=\frac{76.50}{0.15}=\frac{7650}{15}\]\[=\frac{510}{1}=510\] (viii) \[37.8\div 1.4=\frac{37.8}{1.4}=\frac{378}{14}=\frac{27}{1}=27\] (ix) \[2.73\div 1.3=\frac{2.73}{1.3}=\frac{273}{1.30}=\frac{21}{10}=2.1\]