SOLUTION: If 20% of a number is added to 288, the answer is 78 times greater than 4. What is the number?

Question 280217: If 20% of a number is added to 288, the answer is 78 times greater than 4. What is the number?
Found 3 solutions by stanbon, JBarnum, Alan3354:
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
If 20% of a number is added to 288, the answer is 78 times greater than 4. What is the number?
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Let the number be "x".
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Equation:
0.20x + 299 = ?
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What do you mean by "78 times greater than 4"?
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Cheers,
Stan H.
Answer by JBarnum(2146)   (Show Source): You can put this solution on YOUR website!
.2n+288=78(4) multiply
.2n+288=312 subtract
.2n=24 divide

Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
"78 times greater" is 79 times as much, not 78 times.
Is 1 times greater 1 times? If so, then why is it called greater?
1 times greater is an increase of 100%, which is 2 times as much.
So, 78 times greater is 79 x the original value.
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0.2n + 288 = 4 + 78*4
0.2n + 288 = 316
0.2n = 28
n = 140
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