1. 65% of a number is more than its two-fifth by 140. What is 30% of that number ?
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By: anil on 05 May 2019 01.26 am
Let the number be X.
So, $$ 65 \%$$ of X - $$frac{2}{5}$$ of X = 140
Or, $$(frac{65}{100}-frac{2}{5})*X = 140$$
So, $$frac{25}{100}*X = 140$$
Therefore, X = 140*4 = 560
Hence, 30% of X = 30%*560 = 168
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So, $$ 65 \%$$ of X - $$frac{2}{5}$$ of X = 140
Or, $$(frac{65}{100}-frac{2}{5})*X = 140$$
So, $$frac{25}{100}*X = 140$$
Therefore, X = 140*4 = 560
Hence, 30% of X = 30%*560 = 168