First deposit = 1,000
After 4 years, this amount would be 1,000 * (1 + 0.08)^4 = 1,360.49
Half of it is withdrawn which is 680.24. This amount will be saved for 11 more years whose future value would be 680.24 * (1 + 0.08)^11 = 1,586.08
Future value of deposit can be calculated as: [Deposit * (1 + Rate of Interest)^Year]
Year | Deposit made | Money withdrawn | Money saved for years | Future value |
1 | 1000 | |||
2 | - | |||
3 | - | |||
4 | - | 680.24 | 1586.08 | |
5 | - | |||
6 | 2000 | 9 | 3998.01 | |
7 | 2000 | 8 | 3701.86 | |
8 | 2000 | 7 | 3427.65 | |
9 | 2000 | 6 | 3173.75 | |
10 | 2000 | 5 | 2938.66 | |
11 | 2000 | 4 | 2720.98 | |
12 | 2000 | 3 | 2519.42 | |
13 | 2000 | 2 | 2332.80 | |
14 | - | 1 | ||
15 | - | 0 | ||
26399.20 |
At the end of year 15, 26,399.20 can be withdrawn. Option D is correct.
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