Q$1.$ An amount of $$80,000$ was invested for $5$ years. Compute its interest at the end of $5$ years if it is invested at $10\%$ simple interest.

a$.$ $$10,815$

b$.$ $$40,000$

c$.$ $$48,841$

d$.$ $$120,000$

Q$2.$ An amount of $$80,000$ was invested for $5$ years. Compute its interest at the end of $5$ years if it is invested at $10\%$ compound interest.

a$.$ $$10,815$

b$.$ $$40,000$

c$.$ $$48,841$

d$.$ $$120,000$

For the questions $($Q$3-$Q$6)$

An arithmetic cash flow gradient series equals $$5000$ in year $1,$$$5700$ in year $2,$ and amounts increased by $$700$ per year through year seven. If the interest rate is $15\%$ per year, answer the following;

Q$3.$ Which of the following equations is correct for calculating the present equivalent?

a$.P_r=P(\frac{A}{P},15\%,6)+G(\frac{A}{G},15\%,6)$

b$.P_r=G(\frac{A}{G},15\%,7)-G(\frac{P}{G},15\%,7)$

c$.P_T=A(\frac{P}{A},15\%,7)+G(\frac{P}{G},15\%,7)$

d$.P_T=A(\frac{P}{A},15\%,6)-G(\frac{P}{G},15\%,6)$

Q$4.$ Which of the following values is correct for present equivalent value?

a$.$ $$7,134$

b$.$ $$20,802$

c$.$ $$23,602$

d$.$ $$27,936$

Q$5.$ Which of the following equations is correct for equivalent annual series amounts?

a$.A_T=P(\frac{A}{P},15\%,7)+G(\frac{A}{G},15\%,7)$

b$.A_T=P(\frac{A}{P},15\%,5)-G(\frac{A}{G},15\%,7)$

c$.A_T=5000-G(\frac{A}{G},15\%,7)$

d$.A_T=5000+G(\frac{A}{G},15\%,7)$

Q$6.$ Which of the following value is correct for equivalent annual series amounts?

a$.$ $$1,715$

b$.$ $$6,715$

c$.$ $$5000$