Percent Increase & Decrease
A shirt originally costs $40. It is now on sale for $30. What is the percent decrease in price?
$40 → $30
Percent decrease = 40−30/40×100=25%
A car travels 180 km in 3 hours. What is its average speed?
60km/h
Which kind of clock do we use here in school?
Digital Clock
Seini bought a belt from Gucci for $450. There is a 7% tax rate where he lives, meaning the price will be increased by 7%. How much will he pay for the belt after tax?
Hint: $450 x 107% OR
$450 x 7% = ? Then add your final answer to $450
$481.50
What is 10% of 75
7.5
A school had 120 students last year. This year, it has 144 students. What is the percent increase in enrollment?
120 → 144 students
Percent increase = 144−120×100=20%
A cyclist rides at 15 km/h. How far will they travel in 4 hours?
60km
A digital clock shows 14:45. What is the time in 12-hour format?
2:45PM
Bob left a 20% donation on a shirt that was $32. How much will the total meal cost with the tip?
Hint: You are increasing the cost of $32 by 20%
$38.40
What is 20% of 75
15
A book’s price increased from $25 to $30. What is the percent increase?
$25 → $30
Percent increase = 30−25/25×100=20%
A train travels at 60 km/h. How long will it take to cover 240 km?
4 hours
A movie starts at 6:30 PM and ends at 8:15 PM. How long is the movie?
1 hour 45 minutes
Billy went to a restaurant and spent $94. He decides to leave a 30% tip. What is his total after the tip?
Hint: You are increasing the cost ($94) by 30%.
$122.20
What is 1% of 75?
.75
A mobile phone was priced at $600 but is now sold for $480. What is the percent decrease?
$600 → $480
Percent decrease = 600−480/600×100=20%
A student walks to school at 4 km/h and takes 30 minutes. How far is the school?
2km
A train departs at 9:45 AM and arrives at 1:30 PM. What is the duration of the journey?
3 hours 45 minutes
Karen's total bill was $40. The states tax rate is 6.8%. How much will the bill be after tax?
Hint: Increase the cost by 6.8%
$42.72
What is 0.1% of 75?
.075
A farmer harvested 200 kg of mangoes last season and 250 kg this season. What is the percent increase?
200 kg → 250 kg
Percent increase = 250−200/200×100=25%
A bus travels 150 km in 2.5 hours. What is its speed?
60km/h
School starts at 8:00 AM and ends at 2:30 PM. How many hours and minutes is the school day?
6 hours 30 minutes
Brianna went to dinner and the subtotal was $30. The public holiday surcharge rate is 5%. She wants to leave a 20% tip on the subtotal as well. What will the total cost be after tax and tip?
Hint: You have to increase her cost by 20% + 5%
$37.50 ($6 for tip, $1.50 for tax)
What is 0.5% of 75?
0.375