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3.

What is the intereft of £439 12 9 at £6 per

cent. per annum, for 16 months?

£. s. d.

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4. What is the intereft of £591 15 9 for 15 months, at £8 per cent. per annum ?

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5.

grs. 3170

What is the intereft of £347 7 5 at £4 per

cent. per annum, for 15 months?

£347 7 5

5 the number of months.

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6. What is the intereft of £517 15 4 at £6 per cent. per annum ?

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Ans. £2 11 91

7. Of £457 12 8 for 2 months, at 6 per cent. per

annum ?

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8. Of 347 5 9 for 3 months, at £347

annum ?

9. Of £397 19 for 4 months, at annum ?

10. 508 10 5 for 5 months, at

annum ?

to

Anf. £4 11 61 6 per cent. per Anf £5 4 2 £6 per cent. per Anf. £7 19 2 £6 per cent. per Anf. 12 14 31

11. £719 19 4 for 6 months, at 6 per cent. per annum ?

Anf. 21 11 11

12. £396 5 10 for 7 months, at 6 per cent. per

Anf. 13 17 4

annum? 13. £517 11 11 for 8 months, at 6 per cent. per annum?

14. £245 5 8

annum?

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Anf. £11 09

Anj. £9 15 9

15. £195 15 5 for 10 months, at 6 per cent.

per annum ?

16. annum ?

148 12 6 for 11 months, at £6 per cent. per

Σ

Anf. £8 351

17. £509 9 2 for 13 months, at £6 per cent. per

annum ?

Anf. £33 2 3

18. annum 7 17 82 for 14 months, at 6 per cent. per

Anf. £22 5 0

19. £443 10 3 for 15 months, at £6 per cent. per

annum?

Anf. £33 5 3

20. £293 7 9 for 16 months, at £6 per cent. per

annum ?

21. £333 13 3 for 17 months, at

annum ?

22. £517 6 6 for 18 months, at

annum ?

Σ

23. £347 11 7 for 19 months, at annum?

24. £419 12 5 for 20 months, at annum ?

Anf. £2395 £6 per cent. per Anf. £28 7 24 6 per cent. per Anf. £46 11 2 £6 per cent. per Anf. 33 4 6 per cent. per Anf. £41 19 2

25. £537 13 5 for 16 months, at £9 per cent. Anf. 64 10 4 per annum ? 26. £1 for 1 year, at 6 per cent. per annum ?

Anf. Is. 2d. Igr.

SIMPLE INTEREST BY DECIMALS.

A TABLE of RATIOS, from one pound, &c. to feven

pounds.

Rate per Ceni| Ratios |Rate perCent|Ratios|Rate ver Cent|Ratios

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Ratio is the fimple intereft of £1 for 1 year, at the

rate per cent. agreed on.

A TABLE for the ready finding of the decimal parts of a year, equal to any number of days, or quarters of a year.

Days Decimal pts. \D. Decimal pts. \Days Decimal pts.

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The principal, time and ratio are given, to find the intereft,

and amount.

RULE. Multiply the principal, time and ratio continually together, and the laft product will be the intereft,

commiffion,

commiffion, brokerage, &c. to which add the principal, and the fum will be the amount.

I.

EXAMPLES.

Required the amount of £537 10s. at £6 per

cent. per annum, for 5 years?

Principal 537-5

Multiply by the ratio =,06

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15,00 Anf. £.698 15s.

Or, 537,5 X,06 X5+537,5= £698 15s.

2.

What is the fimple intereft of £917 16s. at £5

per cent. per annum, for 7 years?

Anf. £321 45. 7d.

3. What is the amount of £235 3s. 9d. at £54 per cent. per annum, from March 5th, 1794, to November 238, 1794 ?

Anfw. 244 os. 8d.

4. If my correfpondent is to have £2 per cent. What will his commiffion on £785 15s. amount to? Anfw. £19 12s. 10žd.

5. If a broker difpofes of a cargo for me, to the amount of £637 10s. on commiflion at 1 per cent. and procures me another cargo of the value of £817 15s. on commiffion at 14 per cent. What will his commiffion, on both cargoes, amount to?

Anfw. £22 5s. 7d.

CASE

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