• # question_answer $\frac{17.28\div y}{3.6\times 0.2}=200$, then what should come in place of$y$? A)  0.12                            B)  120           C)  1.20                D)  14

Solution :

$\frac{17.28\div y}{3.6\times 0.2}=200$ $17.28\times \frac{1}{y}=200\times \frac{36}{10}\times \frac{2}{10}$ $y=\frac{17.28}{2\times 36\times 2}=\frac{1728}{144}=0.12$

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