impact of interest rates

Olga earned $19.80 as interest in 4 years. Find the principal if the rate of interest is 3%. => $149.35 or $175.45 or $190.50 or $165..

Marissa deposited $900 in her savings account. The rate of simple interest is 5% per year. Find the balance at the end of 4 years. => $720 or $1080 or $180 or None of the above..

Danielle deposited $400 in her savings account. The rate of simple interest is 6% per year. Find the balance at the end of 3 years. => $456 or $288 or $72 or $472..

John invested $600 at the rate of 8% interest compounded annually. Find the value of his investment after 10 years. => $1436.48 or $1265.55 or $1295.35 or $1000..

Robert invested $12000 at a rate of 10% annual interest compounded monthly. Find the value of his investment after 6 years. => $21000.34 or $21820.75 or $21700 or $21811.13..

Find the present value of a loan with an annual interest rate 4.3% and periodic payments $790 for a term of 5 years, with payments made and interest compounded 12 times per year. (Give the answer corrected to nearest whole number.) => $24826 or $46358 or $43450 or $439..

An advertisement of a bank promises to double an investor's money in 5 years. What is the rate of simple interest that an account should earn to double itself in 5 years? => 30% or 15% or 20% or 25%..

Find the amount accumulated after investing a principal of $1520 for 6 years at the interest rate of 5.4% compounded 12 times in a year. => $2200 or $2100 or $2000 or $1200..

John borrowed $170 at a rate of 3% per annum. Find the time period for which he borrowed the money, if he paid $20.40 as interest. => 4 years or 5 years or 8 years or 6 years..

Find the amount accumulated after investing a principal of $10,000 for 3 years at an interest rate of 6.5% compounded annually. => $1245.35 or $1207.94 or $1107.44 or $1200..