Subject
Quantitative Aptitude
Topic
Interest
A man borrows Tk. 360 and pays it back in 12 monthly installments of Tk. 31.50 What is the rate of interest?
A man borrows Tk. 360 and pays it back in 12 monthly installments of Tk. 31.50 What is the rate of interest?
ক)
5%খ)
14.5%গ)
7.5%ঘ)
10%Explanation
12টি মাসিক কিস্তিতে পরিশোধ করলে হয় = 31.50 × 12 = 378 .: সুদ হয় = (378 - 360) = 18 এখন, I = p × n × r ⇒ 18 = 360 × 1 x r/100 ⇒ (18×100)/360 = r ⇒ 5 = r ∴ r = 5%Related questions
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