Subject
Quantitative Aptitude
Topic
Simplification
The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Tk. The total price of 12 chairs and 3 tables is:
The price of 10 chairs is equal to that of 4 tables. The price of 15 chairs and 2 tables together is Tk. The total price of 12 chairs and 3 tables is:
ক)
Tk. 3500খ)
Tk. 3750গ)
Tk. 3840ঘ)
Tk. 3900Explanation
Let the cost of a chair and that of a table be Tk. x and Tk. y respectively. Then, 10x = 4y or y = (5/2)x So, 15x + 2y = 4000 => 15x + 2 x (5/2)x = 4000 => 20x = 4000 So, x = 200. So, y = ((5/2) x 200) = 500. Hence, the cost of 12 chairs and 3 tables = 12x + 3y = Tk. (2400 + 1500) = Tk. 3900.Related questions
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