Maria Purchased brand X pens for Tk. 4.00 apiece and brand Y pens for Tk. 2.80 apiece. If Maria purchased a total of 12 of those pens for Tk. 42.00 ,how many brand x pens did she purchase?

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Job Solution Pubali Bank Ltd Pubali Bank Ltd - Junior Officer (Cash) -06.05.2011 গণিত
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