Time Value of Money

At six months' intervals A deposited of Rs. 1000 in a savings account which credit interest at $10\%$ p.a., compounded semi-annually. The first deposit was made when A's son was 6 months old and last deposit was made when his son was 8 years old. The money remained in the account and was presented to the son on his 10th birthday. How much did he receive? ${\left(1.05\right)}^{16}=2.1829)$