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By how much percent is four-fifths of 70 lesser than five-sevenths of 112 ?

A. 24%

B. 30%

C. 36%

D. 42%

Answer: Option B

Solution(By Examveda Team)

$$\frac{4}{5}$$ × 70 = 56 and $$\frac{5}{7}$$ × 112 = 80
∴ Required percentage :
$$\eqalign{ & = \left( {\frac{{80 - 56}}{{80}} \times 100} \right)\% \cr & = \left( {\frac{{24}}{{80}} \times 100} \right)\% \cr & = 30\% \cr} $$

This Question Belongs to Arithmetic Ability >> Percentage

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