Answers

2014-05-07T20:32:08+05:30
Assume that his expense is rs.1000
first decrease in expense = 15/100 *1000 which is 150 subtracting it from the original expense we get 850.
5% decrease on it (850) = 5/100*850 which gives 42.5 again subtracting it from the expense (850) we get 807.5
so the total decrease in expense = 807.5/1000*100
and the answer is 80.75%
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  • Brainly User
2014-05-12T11:16:31+05:30
The Shortcut Formula is as follows :          Net  Decrease = -15 - 5 + (15*5)/100                                 => Net Decrease = -20 + 75 /100 = (-2000 +75) /100 = -1925 /100   = 19.25                  Hence Net Decrease = 19.25%
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@krisnakumar the net %age decrease will be (1000 - 807.5 )/1000*100 =192.5/1000*100 = 19.25 hence the net Decrease in Expenses = 19.25%
hope u understand