Exercise: There are two scheme of cost and benefit accident treatment

at selected junction with high rate accidents as follows:

Scheme A:

Cost of junction redesign is RM $150,000$ within $1$ years completion,

Annual maintenance cost is RM $15,000$ for the next $5$ years after

installation,

Estimated benefit of treatment around RM $66,000$ for $2$ year followed

by RM $33,000$ for the remaining $3$ years.

Scheme B:

Cost of junction redesign is RM $100,000$ within $1$ years completion,

Annual maintenance cost is RM $20,000$ for the next $5$ years after

installation,

Estimated benefit of treatment around RM $60,000$ for $2$ year followed

by RM $30,000$ for the remaining $3$ years.

If the interest rate of $11\%$ within a period of $6$ years, evaluate the Net

Present Value $($NPV$)$ and which scheme will be selected.help