increase
decrease
compound %
simple
100

A phone price is increased by 20% and becomes $600. What was the original price?

$500

100

A jacket costs $480. It is sold with a 25% discount. What is the sale price?

$360

100

$5,000 is invested at 10% compound interest per year for 2 years. Find the final amount.

6,050

100

$6,000 is invested at 5% simple interest for 4 years. Find the final amount.

$7,200

200

The price of a TV is $780. A 15% VAT is added. What is the final price?

$897

200

A phone priced at $950, but for students there is  20% discount. How much discount is given for students in $?

$190

200

8,000 becomes $9,680 after 2 years of compound interest. Find the annual rate.

10%

200

$9,000 earns $1,620 simple interest in 3 years. Find the annual rate.

6%

300

The population of a town increases by 25% and becomes 10,000. Find the original population.

8,000

300

After a 25% decrease, the value of a machine is $15,000. Find the original value.

$20,000

300

$10,000 is invested at 5% compound interest per year for 3 years. Find the final amount.

$11,576.25

300

$12,000 is invested at 8% simple interest for 2.5 years. Find the final amount.

$14,400

400

Last year price of a camera was $500, inflation was 12% that year, and price increased. Find the new price of camera for this year.

$560

400

A car’s value decreases by 30% and becomes $14,000. Find the original value.

$20,000

400

$4,000 grows to $4,840 in 2 years at compound interest. Find the annual rate.

10%

400

$5,000 becomes $6,250 after 5 years at simple interest. Find the annual rate.

5%