Subject
Quantitative Aptitude
Topic
Percentage
The banker's discount on a sum of money for 1(1/2) years is Tk. 558 and the true discount on the same sum for 2 years is Tk. The rate percent is:
The banker's discount on a sum of money for 1(1/2) years is Tk. 558 and the true discount on the same sum for 2 years is Tk. The rate percent is:
ক)
10%খ)
13%গ)
12%ঘ)
15%Explanation
B.D. for 3/2 years = Tk. 558. B.D. for 2 years = Tk. {558 x (2/3) x 2} = Tk. 744 T.D. for 2 years = Tk. 600. So, Sum = (B.D. x T.D.)/( B.D. - T.D) = Tk. (744 x 600)/144 = Tk. 3100. Thus, Tk. 744 is S.I. on Tk. 3100 for 2 years . So, Rate = (100 x 744)/(3100 x 2)% = 12%Related questions
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