MCQ
Solve : $2 \dfrac{5}{7}\% $ of $280\ cm.$
- A$2.80\ cm.$
- B$80\ cm.$
- ✓$7.6\ cm.$
- D$280\ cm.$
$\Rightarrow2\dfrac { 5 }{ 7 } \%$ of $280$
$=\dfrac { 19 }{ 7 }\% \%$ of $280$
$=\dfrac{19}{7}\times \dfrac{280}{100}$
$=19\times \dfrac{4}{10}$
$=\dfrac{76}{10}=7.6$
So $2\dfrac { 5 }{ 7 }$ of $280\ cm$ is $7.67.6\ cm$
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