5⁄7 of 4⁄15 of a number is 8 more than 2⁄5 of 4⁄9 of the same number. What is half of that number? Choose the correct choice.
A) 630
B) 315
C) 210
D) 105
E) None of these
Let the number be x.   ∴ 5⁄7 × 4⁄15 × x - 2⁄5 × 4⁄9 × x = 8   or, x = 8×31512=2108×31512=210   ∴ Half of the number = 105   Answer 105
<result>D</result>
5⁄7 of 4⁄15 of a number is 8 more than 2⁄5 of 4⁄9 of the same number. What is half of that number?