Example

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

Question

$$100 \times \frac{ 40 }{ 50 }$$

Answer

80

Solution


Use this rule: \(a \times \frac{b}{c}=\frac{ab}{c}\).
\[\frac{100\times 40}{50}\]
Simplify  \(100\times 40\)  to  \(4000\).
\[\frac{4000}{50}\]
Simplify.
\[80\]
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