 | James Charles Byrnes, Julia Richman, John Storm Roberts - 1913 - 468 σελίδες
...$63.90 -5- $27 = 2^. 2ft jr. Ans. Changing to months and days, the time is 2 yr. 4 mo. 12 da. 442. RULE. To find the time. Divide the GIVEN INTEREST by the INTEREST on the given principal for 1 YEAR at the given rate per cent. EQUATION. Time = Interest -*• Interest... | |
 | James Charles Byrnes, Julia Richman, John Storm Roberts - 1913 - 552 σελίδες
...$ 27 = 2^. be used for the unknown 2^J yr. = 2 yr. 4 mo. 12 da. quantity in these equations ? Ans. RULE. —To find the Time : Divide the GIVEN INTEREST by the INTEREST on the given principal for 1 TEAR at the given rate per cent. EQUATION. Time = Interest -s- Interest... | |
 | Hoy D. Orton - 1866 - 208 σελίδες
....06=$30.00. Now, if it take 1 year to gain $30, it will require *-*£ to gain $120^4 years, Ant. RULE. — Divide the given interest by the interest of the principal for 1 year, and the quotient it the time. Given the amount, time, and rate per cent., to find the principal. RULE.... | |
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Or, make the given interest the numerator, and the interest of the principal for 1 year at the given rate the... 
