Topical advanced arithmetic.

by David Eugene Smith

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1912 edition. ...principal. 305. Rate. The per cent of interest is called the rate. That is, if the interest is 6% of the principal, the rate is 6%. WRITTEN EXERCISE 1. What is the interest on $375 for 1 yr. at 6%? at 4%? 2. What is the interest on $950 for 1 yr. at 5%? at 3%? 3. What is the interest on $235 for 1 yr. at 4%? at 5%? 4. If you had $27 in a bank that paid 3% a year, how much interest would you receive for a year? 5. How much are the interest and principal together of $475 at the end of 1 yr., the rate of interest being 6%? ORAL EXERCISE Find the interest for 1 yr. on the sums given in Exs. 1-12, at the rates 1. $100at4%. 2. $300at6%. 3. $60at3%. 4. $500at 5%. 6. $900at3%. 6. $50at4%. 7. $400at6%. 8. $1200at3%. 9. $70 at5%. 10. $1000at4%. 11. $3000 at4%. 12. $90at6%. Find the interest on the following for 6 mo., first finding the interest for 1 yr., and then dividing by 2: « 13. $100at6%. 14. $200at5%. 15. $40at6%. 16. $400at3%. 17. $250at4%. 18. $50at4%. 19. $600at 5%. 20. $500at5%. 21. $70at3%. 22. $800at4%. 23. $1000at3%. 24. $80at5% 306. Finding interest. We have found the interest on money, at various rates, for one year, and also for half of a year. We shall now find it for other lengths of time. What is the interest on $250 for 10 mo. at 6%? The interest for 1 yr. is 6% of §250, and for 10 mo. it is §, or J, of this sum. of 6% of $250 = 5% of $250 = $12.50. ORAL EXERCISE 1. If the interest for 1 yr. is $16, how much is it for £ yr.? for yr.? for yr.? 2. If the interest for lyr. is $24, how much is it for 1 mo.? for 3 mo.? for 11 mo.? 3. If the interest for 1 yr. is $8, how much is it for 3 yr.? for 5 yr.? for 7 yr.? for 8 yr.? 4. At 6%, how much is the interest on $500 for 1 yr.? for 4 mo.? for 2 yr.? for 6 mo.?...

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About the author

David Eugene Smith was an American mathematician, educator, and editor.