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 :
$$\eqalign{ & = \left( {\frac{{80 - 56}}{{80}} \times 100} \right)\% \cr & = \left( {\frac{{24}}{{80}} \times 100} \right)\% \cr & = 30\% \cr} $$
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B. $$\frac{1}{3}$$
C. $$\frac{1}{2}$$
D. $$\frac{2}{3}$$
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