• # question_answer If$\frac{17.28+y}{3.6}\times 0.2=400$ then what should come in place of $y$? A) $0.24$                         B) $0.024$C) $2.4$                           D) $0.0024$

we have, $\frac{17.28\div ?}{3.6}\times 0.2=400$ $\Rightarrow 17.28\div ?=\frac{400\times 3.6}{0.2}$ $\Rightarrow ?=\frac{17.28\times 0.2}{400\times 3.6}=0.0024$