Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$\left. \begin{array} { l } { 80 : 400 : : 60 : ? } \\ { 200 } \end{array} \right.$$

Answer

4/2003

Solution


Simplify.
\[\frac{4}{2003}\]

Decimal Form: 0.001997

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