4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8.
What is half of that number? Choices
A) 305  B) 315  C) 345  D) 325  E) 335
Let the number be x. then 4/15 of 5/7 of x-4/9 of 2/5 of x=84/21x-8/45x=8   (4/21-8/45)x=8(60-56)/315x=84/315x=8   x=(8*315)/4= 
<gadget id="calculator">(8*315)/4</gadget>
<output>630</output>
6301/2x=315   Hence required number = 315   Answer is 315.
<result>B</result>
4/15 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8.
What is half of that number?