consumer arithmetic

The simple interest on $400 at 5% per annum

for2years is given by

• $ (400 x 5 x 2) /100

• $ (400 x 5) / (2 x 100)

• $ (400 x 2) / (5 x 100)

• $ (400 x 100) / (2 x 5)

A man bought a calf for$200 and sold it for

$250 . What was his gain as a percentage of the

cost price?

• 5%

• 15%

• 20%

• 25%

The sum of 1/2 and 1/3 is

• 2/5

• 3/5

• 5/6

• 7/6

A salesman is paid 5% of his sales as commission. His sales for last month were $2020 . How much commission was he paid?

• $ 11.00

• $ 20.20

• $101.00

• $110.00

How much does a customer pay for an article marked at $50.00 if a sales tax of 6% is charged?

• $56.00

• $53.00

• $47.00

• $44.00

The exchange rate for one United States dollar

(US$1.00) is two dollars and seventy cents in

Eastern Caribbean currency ( $2. 70 ) EC. What is

the value of $4.50 US in EC currency?

• $ 1.67

• $ 6.00

• $ 7.20

• $12.15

If the simple interest on $800 for3 years is $54 . What is the rate of interest per annum?

• 44%

• 5%

• 2¼%

• 4/9 %

Mary invested $200 for 3 years at 5% per

annum. John invested$300 at the same rate. If

they both received the same amount of money in interest, for how many years did John invest his

money?

• 1 1/2

• 2

• 3

• 10