Bank X pays a simple interest of TaKa 80 on principal o taka 1,000 annually . Bank y pays a simple interest of TaKa 140 on a principal of Taka 1000 annually . What is the ratio of the interest rates of Bank x to Bank y ?

A 4:7
B 6:8
C 9:18
D 2:7

Correct Answer: 4:7

Ratio of the interest rates of Bank X to Bank Y = 80/140 = 4/7
Bissoy MCQ
#গণিত #Bangladesh Bank #সরল ও যৌগিক মুনাফা  (Simple & Compound interest) #অনুপাত-সমানুপাত (Ratio-Proportion) #Bangladesh Bank - Assistant Director - 2012

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