A person deposited Tk. 400 for 2 years, Tk. 550 for 4 years and Tk. 1200 for 6 years. He received the total simple interest of Tk. 1020. The rate of interest per annum is

A 10%
B 5%
C 15%
D 20%

Correct Answer: 10%

ধরি, সুদের হার r % 400 × 2 × r/100 + 550 × 4 × r/100 + 1200 × 6 × r/100 = 1020 8r + 22r + 72r = 1020 102r = 1020 r = 10 %
Bissoy MCQ
#গণিত #সরল ও যৌগিক মুনাফা  (Simple & Compound interest) #Bangladesh House Building Finance Corporation (BHBFC) #Bangladesh House Building Finance Corporation - Officer - 10.11.2017

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