Ratios & Percentages
What is 20% of 150?
30
Maria buys 4 notebooks at $3.50 each. How much does she spend?
$14
Find the perimeter of a rectangle with sides 9 cm and 14 cm.
46 cm
The average of 5 numbers is 24. What is their total?
120
What is 3/4 + 1/8?
7/8
A ratio is 4:7. What fraction (part over total) represents the first part?
4/11
A tank holds 120 liters. 35 liters are used. What fraction of the tank remains?
17/24
Find the area of a triangle with base 16cm and height 7 cm.
56 cm^2
23
What is 2.6 x 0.4
1.04
A car travels 270 miles in 4.5 hours. What is its speed?
60 mph
A train travels 180 miles at 60mph, the continues another 120 miles at 40 mph. What is the total travel time?
6 hours
A rectangular prism measures 6 x 5 x 4. Find the volume.
120 cubic units
A number is multiplied by 3, then decreased by 8, resulting in 49. Find the number.
19
What is 5/6 - 3/10
8/15
A jacket costs $80 and is discounted by 30%, then taxed 10%. What is the final price?
$61.60
A class of 32 students has a 3:5 ratio of boys to girls. How many girls are there?
20
A square has the same area as a rectangle measuring 24 x 6. Find the side length of the square.
12
Two numbers differ by 18 and have a sum of 74. What are the numbers?
46 and 28
What is 9/4 divided by 6/5
15/8
A number is increased by 25% and becomes 125. What was the original number?
100
A store sells pencils in packs of 12. Sophia bought 10 packs of pencils. If three-fourths (3/4) of the total amount of pencils are sold, how many pencils remain?
30
A circle has a diameter of 14 m. Find the circumference (use pi = 22/7)
44 cm
If 2/3 of a number plus 15 equals 41, what is the number?
39
Convert 0.375 to a fraction in simplest form.
3/8