The price of 2 sarees and 4 shirts is Tk. 1600. With the same money one can buy 1 saree and 6 shirts. If one wants to buy 12 shirts, how much shall he have to pay?
Correct Answer: Option B
Let the price of a saree and a shirt be Tk. x and Tk. y respectively.
Then, 2x + 4y = 1600 .... (i) and x + 6y = 1600 .... (ii)
Divide equation (i) by 2, we get the below equation.
=> x + 2y = 800 --- (iii)
Now subtract (iii) from (ii)
x + 6y = 1600 (-)
x + 2y = 800
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4y = 800
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Therefore, y = 200.
Now apply value of y in (iii)
=> x + 2 x 200 = 800
=> x + 400 = 800
Therefore x = 400
Solving (i) and (ii) we get x = 400, y = 200.
So, Cost of 12 shirts = Tk. (12 x 200) = Tk. 2400.
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