Faisal purchased brand A shirts for 400 a piece and brand B shirts for Tk. 280 a piece.  If Faisal purchased a total of 12 shits for 4,200 how many brand B shirts did he purchased?

A    8

B    7

C    4

D    5

Solution

Correct Answer: Option D

 

ধরা যাক , B  ব্রান্ডের শার্ট কিনেছিল x টি          A        “                    “       “               12-x টি প্রশ্ন মতে , 400(12-x)+280x=4200                        or,120x=600                       or,x=5

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