or
or
In the first month paid, x/6 Tk.
Remaining = x - x/6 = Tk.5x/6
In the 2nd month paid y = 1/6 × 5x/6 + 400
= 5x /36 + 400
Remaining for 3rd month = ( 5x /6 - 5x /36 - 400) = 30x - 5x /36 - 400 = 25x/36 - 400
আপনি আমাকে যেকোনো প্রশ্ন করতে পারেন, যেমনঃ
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