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Question
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?
6 months
7 months
8 months
9 months
ANSWER : 3
Descrption
<p>Let, n be the no. of month</p><p>Then,</p><p>initial deposit-n*Monthly Withdrawal + n*Monthly Deposit =Intial Deposit *3</p><p>>1000-n*500 + n*750=3000</p><p>>250*n=2000</p><p>Therefore, n=8 month</p><p> </p>
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