1) Two-fifth of one-fourth of three-seventh of a number is 15. What is half of that number ? A) 94 B) 96 C) 188 D) 196 E) None of these Answer: Option EExplanation:$\frac{2}{5}\times\frac{1}{4}\times\frac{3}{7}\times n=15$ $=> \frac{6}{140}\times n =15 => n=\frac{15\times140}{6} => 350$