. 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?
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0
Answer:
315
Step-by-step explanation:
Let the number be x.
5/7 * 4/15 * x - 2/5 * 4/9 * x = 8
=> (4/21) x - (8/45)x = 8
Take LCM of 21, 45 which is 315.
=> 60x - 56x / 315 = 8
=> 4x = 8 * 315
=> x = 630.
Thus the number is 630.
So half of the number will be 630/2 = 315.
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