10 third term. 21600 dividend. When a footman travels 240 miles in 12 days of 12 hours long, in how many days of 16 hours long will he travel 720 miles? Ans. in 27 days. For distinction, we will mark 12 hour-days and 16 hour-days, thus, 12hd. 16hd. and days we will mark with d only. Now suppose that 12 hourdays is the principal cause of action and must be the first term. 1776)6837600(3850 Ib.dollars on the hundred year 5328 15096 14208 ... 8880 8880 0 LESSON 9. PROOF OF LESSON 8. If 296 soldiers will eat 1776 pounds of beef in 6 days, in how many days will 350 men eat 3850 pounds? Answer, 11 days. lb. ly. Ans. 37 dol. 50 cents. Suppose 100 dollars in 1 year will gain 5 dollars interest, then, how much interest will 200 dollars gain in 3 years and 3 quarters of a year? or, 3.75 years? For distinction, mark 100 dollars principal, dol. P. and 5 dollars interest, dol. intr. dol. P. 100 200 yr. dol. intr men. d. 18.75 200 fourth 3750.00 dividend. As the second term is I, multiplication is needless; therefore 100 is the divisor. 100)3750.00(37.50, dol.= 300 37 dol. and 50 hundredths of a dollar. 2310 3465 770 1139600 .750 6 second term. 700 .500 500 6837600 dividend. 1776 third. 8880 5328 621600 divisor. 621600)6837600(11 days. 6837600 LESSON 10. What is the interest of 200 dollars for 3 years at 5 per LESSON 11. If I lend 74 dollars, and at the end of 6 months receive 76 dollars and 59 cents for principal and interest, at what rate per cent do I receive interest? Answer, 7 per cent. We will first note that 74 cent. per annum? that is, 5 dollars make the principal, |