In the table below, we are given two annuity plans, A and B, and the amount invested into each plan every month. Given this information, determine which of the two investments is an ordinary annuity, and the amount invested over a 12-month period.
Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sept. Oct. Nov. Dec.
A100 100 100 100 100 100 100 100 100 100 100
B100 100 100 100 100 100 100 100 100 100 100
AInvestment A is an ordinary annuity with an annual contribution of \$1,100
BInvestment A is an ordinary annuity with an annual contribution of \$100
CInvestment B is an ordinary annuity with an annual contribution of \$1,100
DInvestment B is an ordinary annuity with an annual contribution of \$100
| Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sept. | Oct. | Nov. | Dec. | |
A | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
B | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | |
AInvestment A is an ordinary annuity with an annual contribution of \$1,100
BInvestment A is an ordinary annuity with an annual contribution of \$100
CInvestment B is an ordinary annuity with an annual contribution of \$1,100
DInvestment B is an ordinary annuity with an annual contribution of \$100