Posted by Ida T. on Saturday, September 18, 2010 at 10:29pm.
A share of stock sold for $50 on Monday. On Tuesday it lost 5% of its Monday’s value. On Wednesday it lost 10% of its Tuesday’s value. On Thursday it lost 5% of its Wednesday’s value. What percent increase would the share of stock have to have on Friday to achieve its Monday’s value of $50?

Math 156  Ms. Sue, Saturday, September 18, 2010 at 11:13pm
50 * .05 = 2.50
50  2.50 = 47.50
47.50 * 0.1 = 4.75
47.50  4.75 = 42.75
42.75 * 0.05 = 2.14
42.75  2.14 = 40.61
50  40.61 = 9.39
9.39/40.61 = 0.2312 = 23.1%
Check my figures.

Math 156  Henry, Sunday, September 19, 2010 at 2:46am
My answer was 23.1 % also.
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