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By how much percent is four-fifths of 70 lesser than five-sevenths of 112 ?
Answer & Solution
Correct Answer:
Option
B
$$\frac{4}{5}$$ × 70 = 56 and $$\frac{5}{7}$$ × 112 = 80
∴ Required percentage :
$$\eqalign{ & = \left( {\frac{{80 - 56}}{{80}} \times 100} \right)\% \cr & = \left( {\frac{{24}}{{80}} \times 100} \right)\% \cr & = 30\% \cr} $$
∴ Required percentage :
$$\eqalign{ & = \left( {\frac{{80 - 56}}{{80}} \times 100} \right)\% \cr & = \left( {\frac{{24}}{{80}} \times 100} \right)\% \cr & = 30\% \cr} $$
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