Mr. X had Tk. 1000 in his savings account. Every month in the first week he needs money, so he withdraws Tk. 500, but by the end of the month , he deposits Tk. 750. After how many months, the original amount will grow three times?

Mr. X had Tk. 1000 in his savings account. Every month in the first week he needs money, so he withdraws Tk. 500, but by the end of the month , he deposits Tk. 750. After how many months, the original amount will grow three times? Correct Answer 8 months

Let, n be the no. of monthThen,initial deposit-n*Monthly Withdrawal + n*Monthly Deposit =Intial Deposit *3>1000-n*500 + n*750=3000>250*n=2000Therefore, n=8 month 
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