A chair costs $250 and a table costs $400. If a housewife purchased a certain number of chairs and two tables for $2800, find the number of chairs she purchased.
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A chair costs Rs 250 and a ...
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A chair costs Rs 250 and a table costs Rs 400. If a housewife purchased a certain number of chair and two tables of Rs 2800, find the number of chairs she purchased.
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Let the number of chairs she purchased be n.
Cost of 1 chair =Rs.250
Cost of 1 teble =Rs.400
Now according to the question-
250×x+400×2=2800
250x+800=2800
⇒250x=2800−800
⇒x=
250
2000
=8
Hence the no. of chairs she purchased is 8.
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