42 Questions
What is the formula to calculate the speed of an entity?
Distance divided by time
What is the cost price?
The price at which an article is bought
How do you find a percentage of a quantity?
Multiply by the percentage and divide by 100
What is the formula to calculate the selling price?
Marked price minus discount
How do you calculate profit percentage?
Find the difference between selling price and cost price, divide by cost price, and multiply by 100
What is the formula for simple interest?
Principal multiplied by rate and time
What is the formula to calculate distance based on speed and time?
Distance = Speed × Time
What is the purpose of comparing ratios in problem-solving?
To identify the relationship between quantities
How do you calculate the time required to process a certain amount based on a rate?
Divide the total amount by the rate
What is the purpose of scaling quantities in recipes?
To adjust the number of servings
How do you increase a quantity in a ratio?
Multiply the quantity by the factor needed
What is the purpose of expressing the total amount to be shared in a ratio of hours worked?
To divide the total amount among workers
What is the formula to convert currency from one type to another?
Multiply the amount by the exchange rate
What is the purpose of comparing production rates between different machines?
To compare the efficiency of different machines
What is the purpose of ranking entities based on their speeds?
To compare the performance of different entities
What is the result of subtracting the discount amount from the marked price?
Selling price
What is the difference between the selling price and the cost price used to calculate?
Profit percentage
What is the principal multiplied by in the formula for simple interest?
Rate and time
What is the purpose of using decimals when calculating discounts?
To convert the discount rate to a decimal form
What is the result of finding the difference between the selling price and the cost price and dividing by the cost price?
Profit percentage
What is the primary purpose of calculating a rate?
To describe how one quantity changes in relation to another
A bakery sells 240 loaves of bread per day at a rate of 30 loaves per hour. How many hours does it operate per day?
6 hours
A car travels 240 km in 4 hours. What is its speed?
60 km/h
A recipe for making cookies requires a ratio of 2:3 of sugar to flour. If you need 6 cups of flour, how many cups of sugar do you need?
3 cups
A factory produces 480 toys per day at a rate of 60 toys per hour. How many hours does it operate per day?
8 hours
If a person works 3 hours and another person works 5 hours, what is the ratio of their work hours?
3:5
A company converts $1000 from USD to EUR at an exchange rate of 1:1.2. How much is the converted amount in EUR?
€1200
A pattern of beads has a ratio of 2:5 of red to blue beads. If there are 10 blue beads, how many red beads are there?
4
A machine can produce 120 boxes in 4 hours. How many boxes can it produce per hour?
30 boxes
A recipe requires a ratio of 3:5 of flour to sugar. If you need 9 cups of sugar, how many cups of flour do you need?
6 cups
A person can paint 6 walls in 3 hours. How many walls can they paint in 5 hours?
10 walls
A factory produces 360 toys in 6 hours. At this rate, how many toys can it produce in 8 hours?
480 toys
A person works 5 hours and another person works 3 hours. What is the ratio of their work hours?
5:3
A car travels 300 km in 5 hours. How many kilometers does it travel per hour?
60 km
A company converts £800 from GBP to USD at an exchange rate of 1:1.5. How much is the converted amount in USD?
$1200
A pattern of tiles has a ratio of 4:7 of red to blue tiles. If there are 16 blue tiles, how many red tiles are there?
8 tiles
A shopkeeper buys an item for $50 and marks it up by 20%. What is the marked price?
$60
A person invests $1000 at a simple interest rate of 5% per annum. What is the interest earned in 2 years?
$200
A company sells an item for $80 after a 10% discount. What was the marked price?
$88
A person buys an item for $60 and sells it for $75. What is the profit percentage?
25%
A person invests $2000 at a compound interest rate of 10% per annum. What is the total amount after 2 years?
$2420
A shopkeeper sells an item for $120 after a 20% discount. What was the cost price?
$150
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