Two chairs and one table cost Rs 700 and 1 chair and 2 tables cost Rs 800 If the cost m tables and m...........

Quantitative Aptitude (CDS) Quadratic Equations

Two chairs and one table cost Rs.700 and 1 chair and 2 tables cost Rs.800. If the cost m tables and m chairs is Rs.30,000, then what is m equal to?

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Explanation:

Let the cost of chair be x and the cost of table be y then
2x + y = 700
2x + 4y = 1600
−3y = −900
y = 300 , and x = 800 − 600 = 200
Given the number of chairs and table are m to be
purchased for Rs 30000
According to the question
200m + 300mm= 30000
m = 60