SOLUTION: The man spend 10% of his income on food and 80% of the remaining income on clothing. If he still has a balance of Rs.1800, find his income

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Question 1084211: The man spend 10% of his income on food and 80% of the remaining income on clothing. If he still has a balance of Rs.1800, find his income
Found 2 solutions by addingup, MathTherapy:
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
x-0.1x+0.8x = 1000
x-0.9x = 1000
0.1x = 1000
x = 10000

Answer by MathTherapy(10556) About Me  (Show Source):
You can put this solution on YOUR website!
The man spend 10% of his income on food and 80% of the remaining income on clothing. If he still has a balance of Rs.1800, find his income
His income is indeed: highlight_green%28matrix%281%2C2%2C+Rs%2C+%2210%2C000%22%29%29

However, the following that someone else has makes ABSOLUTELY NO SENSE, and DOES NOT EQUATE to an answer of Rs. 10,000. 



x-0.1x+0.8x = 1000

x-0.9x = 1000

0.1x = 1000

x = 10000



I don't even know where 1,000 came from, and my 4th grader knows that x - 0.1x + 0.8x DOES NOT and will never EVER sum to 0.1x. 



I really don't know what some people are doing in this forum, since they obviously cannot manage to provide correct help to SIMPLE, SIMPLE problems.

If you want the correct formulation of the problem, you can write back!