4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 24. What is half of that number?	Choose the correct choice from the following answers: A) 670 B) 750 C) 945 D) 375 E) 315

Rationale: "let no . be x 4 / 15 * 5 / 7 * x - 4 / 9 * 2 / 5 * x = 8 by further solving 20 x / 105 - 8 x / 45 = 8 4 x / 315 = 24 x = 1890 we have to find x / 2 = 1890 / 2 = 945 answer : c"
Answer: C