Ms. Champa borrowed Tk. 240, interest free, from her elder brother to pay for her college education. If she pays back 5% of the amount quarterly, and has already paid Tk. 42, for how many month has she been paying back her loan?
Solution
Correct Answer: Option B
In Every 3 month she pays =240 X 2.5 X 1/100 = 6 tk
she pays 6 tk in every 3 month
“ “ 1 tk “ “ 3/6 month
“ “ 42 tk “ “ 3/6 X 42 “
= 21 month
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