Ratios
A recipe calls for 3 cups of flour to 2 cups of sugar. What is the ratio of sugar to flour in simplest form?
2:3
What is 25% of 80?
20
8 + 3 × 4 − 5
15
x/6 = 10/12
x = 5
What's 15% of 60
$9
A car travels 210 miles on 7 gallons of gas. Simplify the ratio of gallons to miles.
30:1
A shirt costs $40 and is marked 30% off. What is the sale price?
$28
(12 − 4)² ÷ 4 + 6
22
7/x = 21/15
x=5
If 4 notebooks cost $10, how much do 14 notebooks cost?
$35
A map uses a scale of 1 inch : 25 miles. Two cities are 3.5 inches apart on the map. How far apart are they in real life?
87.5 miles
18 is what percent of 45?
40%
5 + 2(9 − 3)² ÷ 12
11
4/9 = 14/x
x = 31.5
WORTH DOUBLE
A school is buying tablets for a computer lab. The ratio of tablets to students is 2:5, and there are 90 students.
Each tablet normally costs $250, but the school gets a 20% education discount. After the discount, 6% sales tax is applied. How much will the school spend.
$7,632
The ratio of boys to girls in a class is 3:5. If there are 32 students total, how many boys are there?
12
A video game's price increased from $50 to $65. What was the percent increase?
30%
(−3)² + 24 ÷ (8 − 2 × 3) − 7
14
(x + 2)/5 = 12/10
x = 4
Flip a coin
heads is +400
tails is -400
A photo is 4 in × 6 in and is enlarged so the longer side is 15 in. What's the new shorter side?
10 in
A pair of headphones costs $120. They're on sale for 25% off, and then 8% sales tax is applied to the discounted price. What is the final amount you pay?
$97.20
[4 + 2(5 − 8)³] ÷ (−5) + 3²
19
(2x − 1)/3 = (x + 4)/5
17/7
I'm a two-digit number. My digits add to 9, and I'm divisible by 4. What could I be?
36 or 72