Posted by Jessie on Tuesday, January 24, 2012 at 5:33pm.
In September the ratio of the amount Ray spent and the amount he saved was 4:1. In October, he got a salary raise. He in creased his spending by 25% but saved the same amount. Find the new ratio.

Math  Steve, Wednesday, January 25, 2012 at 11:19am
Look at the ratio. He now saves $1 for every $5.
His new salary is 1.25 as much, so where he earned $5, he now earns 5*1.25 = $6.25
Now he saves $1 for every $6.25, so the ratio is 5.25:1 or 21:4
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