Assume the effective rate of interest is $5\%$ p$.$a$.$ from $1$ January $2011$ to $31$ July $2011$ and it is $0\mathrm{.}8\%$ per month thereafter. An investor will receive $150,000\mathrm{.}00$ on $1$ May $2011$ and a further $120,000\mathrm{.}00$ on $1$ November $2011.$ What is the total accumulated value on $1$ January $2012$ of these cash flows? What is the present value of these cash flows on $1$ January $2011.$