The price of 3 pants and 6 t-shirts is Rs. 750. With the same money one can buy 1 pant and 12 t-shirts. If one wants to buy 8 t-shirts, how much shall she have to pay ?
Options:
A) 150
B) 250
C) 400
D) 450
E) 550
Let the price of a pant and a t-shirt be Rs. x and Rs. y respectively.   Then, 3x + 6y = 750 .... (i)   and x + 12y = 750 .... (ii)   Divide equation (i) by 3, we get the below equation.   = x + 2y = 250. --- (iii)   Now subtract (iii) from (ii)   x + 12y = 750 (-)   x + 2y = 250   ----------------   10y = 500   ----------------   y= 50   cost of 8 t-shirts = 8*50= 
<gadget id="calculator">8*50</gadget>
<output>400</output>
400   Answer : 400
<result>C</result>
The price of 3 pants and 6 t-shirts is Rs. 750. With the same money one can buy 1 pant and 12 t-shirts. If one wants to buy 8 t-shirts, how much shall she have to pay ?