What is the date on which invoices dated as follows are due:

13. Find the interest of $ 560 for 1 yr. 8 mo. at 6%.

14. What is 10 months' interest of $784 at 6% ?

15. What is the interest of $ 478 for 3 yr. 4 mo. at 6% ?

16. Find 5 months' interest of $856.50 at 6%.

17. Find 2 months' interest of $ 460 at 8%.

18. One month's interest of $ 324 at 3%.

19. What is the interest of $ 1800 for 4 yr. 2 mo. at 41%?

20. What is the interest of $ 1297 for 1 mo. at 6% ?

21. Interest of $375 for 20 days at 6% ?

22. 12 days' interest of $75 at 12% ?
23. 5 days' interest of $1200 at 4% ?
24. 6 days' interest of $27,864 at 6% ?
25. 4 months' interest of $2500 at 7% ?
26. 15 days' interest of $2800 at 5% ?
27. 3 days' interest of $500, at 9% ?

28. Interest of $ 800 for 5 yr. 10 mo. at 6%?

29. 2 days' interest of $ 4678 at 6%?

30. 1 day's interest of $480 at 71% ?

31. Find the interest of $400 for 1 yr. 10 mo. 15 da. at 6%.

32. What is the interest of $2000 for 4 yr. 7 mo. 12 da. at 6%?

1. What is the interest of $500 for 2 yr. 3 mo. 9 da. at 6% ?

2. What is the interest of $500 for 3 yr. 5 mo. 6 da. at 7%?

3. Find the interest of $700 for 2 yr. ) mo. 18 da. at 5%.

SOLUTION

Ex. 1

Int. of $1 at 6% for

2 yr. = $0.12
3 mo. = 0.015

9 da. =

4. $1600 will draw x interest in 66 da. Int. of $500 at 8%.

What is the amount of:

5. $275 for 1 yr. 6 mo. 24 da.

at 5% ?

6. $450 for 6 yr. 7 mo. 15 da.

at 6% ?

7. $675 for 3 yr. 4 mo. 28 da.

at 7%?

8. $2100 for 1 yr. 5 mo.

19 da. at 6% ?

13. I deposited as follows:

or $68.25.

0.0015 $0.1365 500 × $0.1365

9. $1300 for 2 yr. 8 mo. 21 da. at 8%?

10. $900 for 4 yr. 4 mo. 4 da.

at 4% ?

11. $320 for 75 mo. 3 da. at

61% ?

12. $98 for 10 yr. 10 mo. 10 da. at 10% ?

On Jan. 1, '01, $1000 at 5%; on Feb. 1, '01, $2500 at 4%; on Mar. 1, '01, $1800 at 41%, and on Apr. 1, '01, $ 1500 at 41%.

What was my total interest on Jan. 1, '02 ?

14. A drew interest on $1300 from Jan. 1, '03, to May 20, '04, at 7%. B drew interest on $1400 from Mar. 1, '03, to May 20, '04, at 7%. Which drew the larger interest, and how much?

15. What is the amount of a $2850 investment at 12% from July 2, '02, until Dec. 25, '03?

16. I took a 10% mortgage of $ 6000 on Feb. 28, '01. How much interest shall I have received by Nov. 31, '05?

17. What is the interest of $375.50 at 81% for 3 yr. 6 mo. 29 da. ? 18. Interest on $ 1775.80 invested for 5 yr. 7 mo. 15 da. at 41% ? 19. What did I pay for the use of $8645.57 for 2 yr. 3 mo. 21 da. at 31% ?

7. If I pay $4 interest on $400 for 2 mo., or 60 days, what do I pay for the use of it for 6 days? For 30 days?

Find the interest on the following sums for the given time:

8. $400 for 4 mo. 6 da. at 6%. 13.

9. 700" 6" 18"

$3900 for 2 mo. 2 da. at 6%.

66

14.

$1200 " 1" 20"

66

24. A man borrows $300 for 22 da. at 6%, and loans $200 for 33 da. at 6%. Will the interest on the loan pay the interest on the borrowed money? How much more?

25. A man invests $500 for 6 yr. 2 mo. at 6%, and his friend invests the same amount for 6 yr. 8 mo. at 6%. How much more does his friend receive for his investment than he?

26. B invested the sums of $600, $700, and $800, each for 2 mo. and 6 da. at 6%. How much interest did he receive from the whole investment?

1. Find the interest on $8278 for 2 yr. 6 mo. 15 da. at 6%.

2. Find the interest on $16,400 for 1 yr. 5 mo. 17 da. at 6%.

3. Find the interest of $1875 for 1 yr. 8 mo. 24 da. at 6%. 4. Find the interest of $9864 for 3 yr. 6 mo. 18 da. at 6%. 5. Find the interest of $827.60 for 2 yr. 1 mo. 16 da. at 6%.