**A. 6%**

B. 5%

C. 7%

D. 8%

1. To find the interest, subtract the principal from the balance.

$618 – $600 = $18

Advertisement

2.Use the simple interest formula and solve for r.

I = Prt

18= 600 x r x (1/2)

r= 0.06 =6%

### Related Mcqs:

- Rs. 6000 is lent out in two parts. One part is lent at 7% p.a simple interest and the other is lent at 10% p.a simple interest. The total interest at the end of one year was Rs. 450. Find the ratio of the amounts lent at the lower rate and higher rate of interest?
**A. 5 : 1**

B. 4 : 1

C. 3 : 2

D. 2 : 1 - An automobile financier claims to be lending money at simple interest, but he includes the interest every six months for calculating the principal. If he is charging an interest of 10%, the effective rate of interest becomes :_________?
A. 10%

**B. 10.25%**

C. 10.50%

D. None of these - Nabeela took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest ?
A. 3.6

**B. 6**

C. 18

D. Cannot be determined - The simple interest on Rs.12000 at a certain rate of interest in five years is Rs.7200. Find the compound interest on the same amount for five years at the same rate of interest.
A. Rs.3502.80

B. Rs.3052.40

C. Rs.3054.8

**D. Rs.3052.80**

E. None of these - A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest?
**A. 3.46%**

B. 4.5%

C. 5%

D. 6% - The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?
A. 3000

B. 2500

**C. 4500**

D. 5000 - A man invests a certain sum of money at 6% per annum simple interest and another sum at 7% per annum simple interest. His income from interest after 2 years was Rs. 354. One-forth of the first sum is equal to one-fifth of the second sum. The total sum invested was :
A. Rs.3100

**B. Rs.2700**

C. Rs.2200

D. Rs.1800 - Simple interest on a certain sum of money for 3 years at 8% per annum is half the compound interest on Rs. 4000 for 2 years at 10% per annum. The sum placed on simple interest is:_______?
A. Rs. 1550

B. Rs. 1650

**C. Rs. 1750**

D. Rs. 2000 - Mr. Tassawar Javed invested an amount of Rs. 13,900 divided in two different schemes A and B at the simple interest rate of 14% p.a. and 11% p.a. respectively. If the total amount of simple interest earned in 2 years be Rs. 3508, what was the amount invested in Scheme B?
**A. Rs. 6400**

B. Rs. 6500

C. Rs. 7200

D. Rs. 7500 - The difference between compound interest and simple interest at the same rate on Rs 5000 for 2 years is Rs 72. The rate of interest per annum is:___________?
A. 6%

B. 8%

C. 10%

**D. 12%**

Advertisement