Subject
Bank Exam
Topic
Bangladesh Bank 2009 (AD)
Hasan sold an article for 56 taka which cost him x taka. If he had gained x% on his outlay, what was his cost?
Hasan sold an article for 56 taka which cost him x taka. If he had gained x% on his outlay, what was his cost?
ক)
40 takaখ)
45 takaগ)
36 takaঘ)
28 takaExplanation
Hasan sold an article for 56 taka which cost him x taka So, Profit = (56-x) Again he had gained x% on his outlay, So Profit = x*x/100 We get, x2/100 = 56 - x x2/100 +x- 56 = x2 +100x -5600 = 0 x2 + 140x -40x -5600 = 0 x(x + 140) - 40 (x + 140) =0 (x-40) (x+140)=0 x=40Related questions
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