 | Benjamin Greenleaf - Arithmetic - 1839 - 356 pages
...it take 1 year to gain $30, it will require to gain $120, igi° = 4 years Ans. Hence the following RULE. Divide the given interest, by the interest of the principal, for 1 year, and the quotient is the lime. 5. How long must $120 be on interest at 8J per cent. to amount... | |
 | Calvin Tracy - Arithmetic - 1840 - 326 pages
...cent. 1 Ans. 4 per cent. Prob. 37. Given the principal, rate per cent., and interest, to find the time. RULE. — Divide the given interest by the interest of the principal for one year ; the quotient will be the time. Ex. 1. Paid $108 interest on a note of $600. How long had... | |
 | Benjamin Greenleaf - Arithmetic - 1841 - 334 pages
...it take 1 year to gain $30, it will require to gain $120, 1gj° = 4 years Ans. Hence the following RULE. Divide the given interest, by the interest of the principal, for 1 year, and the quotient is the time. 5. How long must $120 be on interest at 8J per cent. to amount... | |
 | Rufus Putnam - Arithmetic - 1849 - 276 pages
...gain $50, the rate must be as many times 1 per cent. as there are times $10 in $50. Ans. 5 per cent. RULE. Divide the given interest by the interest of the principal for the given time at 1 per cent. per annum ; the quotient will be the rate required. 2. At what rate per cent. must $200 be put on interest,... | |
 | Benjamin Greenleaf - Arithmetic - 1850 - 368 pages
...= $ 30.00. Now, if it take 1 year to gain $ 30, it will require *ff- to gain $120, = 4 years, Ans. RULE. — Divide the given interest by the interest of the principal for 1 year, and the quottent is the time. 5. How long must $120 be on interest at 8£ per cent. to amount... | |
 | James Stewart Eaton - Arithmetic - 1857 - 376 pages
...will gain $12 ; .-., to gain $36, the time in years must be the quotient of $36 -^- $12 = 3. Hence, RULE. — Divide the given interest by the interest of the principal for one year at the given rate. 7. How long must $133 be on interest at 7 per cent. to gain $32:585 ? Ans.... | |
 | Silas Lawrence Loomis - Arithmetic - 1859 - 324 pages
...cent., or see Art. 281. PROB. LXXX. — THE INTEREST, RATE, AND PRINCIPAL GIVEN, TO FIND THE TlME. RULE. — Divide the given interest by the interest of the principal for one year, or see Art. 282. PROB. LXXXI. — THE AMOUNT, RATE AND TIME GIVEN TO FIND THE PRINCIPAL.... | |
 | James Stewart Eaton - 1862 - 320 pages
...will gain $6 in 2 years ; .-., to gain $18, the rate must be the quotient of $18, -i- $6 = 3. Hence, RULE. Divide the given interest by the interest of...the principal, for the given time, at 1 per cent., and the quotient will be the rate. 2. At what rate per cent, must $142 be put on interest to gain $21.30... | |
 | Edward Brooks - Arithmetic - 1863 - 350 pages
...$49.14, -which is 6 per cent. Hence we 8.19 Int. at \% have the following 49.14 -m = ^°'AnlB.ULE. — Divide the given interest by the interest of the principal for the given time, at ONE per cent. NOTE. — When the amount is given, find the interest by subtracting the principal from... | |
 | George Augustus Walton - Arithmetic - 1864 - 364 pages
...times. Ans. >>%>. Hence the RULE. To find the rate, when the interest, time, and principal are given : Divide the given interest by the interest of the principal...for the given time at 1 per cent. EXAMPLES. At what tf0 wiN 1. $300 gain $40.80 in 1 y. 5 m. ? . Ans. 8%. 2. $100 gain $33J in 12 y. 6 m. ? Ans. 2$%. 3.... | |
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RULE. Divide the given interest by the interest of the principal for the given time at 1 per cent. 
