Surface Area
What is the surface area of a cuboid with dimensions 4 cm by 5 cm by 6 cm?
SA=2lw+2lh+2wh
Answer: 148cm2
You are traveling to Europe and need to convert 500 USD into euros. The exchange rate is 1 USD = 0.85 EUR. How many euros will you receive for 500 USD?
500USD×0.85EUR/USD=425EUR
A blueprint of a house has a scale of 1:100. If the length of a room on the blueprint is 5 cm, what is the actual length of the room in metres?
5 meters
A class of 30 students was surveyed to find out how many books they read in a month. 5 students read no books, 10 students read 1 book, 8 students read 2 books, 4 students read 3 books, and 3 students read 4 books.
How many students read 2 books?
8 students read 2 books.
What is the capital city of France?
Paris
Find the surface area of a cube with side length 3 cm.
SA=6s2
Answer: 54cm2
You are in Japan and want to convert 10,000 JPY (Japanese yen) into USD. The exchange rate is 1 USD = 130 JPY. How many USD will you get for 10,000 JPY?
10,000JPY÷130JPY/USD=76.92USD
A map has a scale of 1:5000. If the distance between two cities on the map is 8 cm, what is the real distance between the cities in kilometres?
0.4km
In a survey of 50 people, the number of hours they spend on social media each day was recorded. 12 people spend 1 hour, 18 people spend 2 hours, 10 people spend 3 hours, and 10 people spend 4 hours.
How many people spend 3 or more hours on social media daily?
The number of people who spend 3 or more hours is 10+10=20 people.
Who wrote the famous play "Romeo and Juliet"?
William Shakespeare.
Find the surface area of a cylinder with a radius of 5 cm and a height of 10 cm. (Use pi 3.14)
SA=2πr2+2πrh
Answer: 471cm2
You want to convert 1000 GBP (British pounds) into Canadian dollars (CAD). The exchange rate is 1 GBP = 1.72 CAD. How many CAD will you receive?
1000GBP×1.72CAD/GBP=1720CAD
A scale drawing of a park is drawn at a scale of 1:250. If the width of the park on the drawing is 12 cm, what is the actual width of the park?
3,000cm
The ages of 40 people in a survey are grouped into the following class intervals:
20-29, 30-39, 40-49, 50-59, 60-69.
What are the class boundaries for the class "30-39"?
29.5 (lower boundary) and 39.5 (upper boundary).
Which planet is known as the "Red Planet"?
Mars
What does CSA stand for?
Curved Surface Area
You are in Australia and want to convert 2,500 AUD (Australian dollars) into Euros (EUR). The exchange rate is 1 AUD = 0.63 EUR. How many euros will you receive for 2,500 AUD?
2,500AUD×0.63EUR/AUD=1,575EUR
A model car is built at a scale of 1:20. If the length of the model car is 15 cm, what is the actual length of the car in metres?
3meters
The heights of 50 students in a class were grouped into the following class intervals:
150-159 cm, 160-169 cm, 170-179 cm, 180-189 cm, 190-199 cm.
The frequency for each class is:
150-159 cm: 8 students, 160-169 cm: 12 students, 170-179 cm: 15 students, 180-189 cm: 10 students, 190-199 cm: 5 students.
What is the total frequency of students whose heights are between 160 cm and 179 cm?
Total frequency: 12+15=27students.
What is the largest ocean on Earth?
The Pacific Ocean.
A cone has a radius of 4 cm and a slant height of 9 cm. Find its surface area. (Use pi 3.14)
SA=πr2+πrl
Answer: 163.28cm2
You are exchanging 5,000 Indian Rupees (INR) into US dollars (USD). The exchange rate is 1 USD = 75 INR. How many USD will you get for 5,000 INR?
5,000INR÷75INR/USD=66.67USD
A scale drawing of a swimming pool is drawn at a scale of 1:50. The width of the pool on the drawing is 3 cm, and the length is 12 cm. What are the actual dimensions of the pool?
Actual width: =150 cm
Actual length: =600 cm
The number of hours spent playing video games per week by a group of 60 people is grouped into these intervals:
0-5 hours, 6-10 hours, 11-15 hours, 16-20 hours.
The frequencies are 15, 20, 15, and 10, respectively.
What is the total number of people who spend between 6 and 15 hours playing video games per week?
Total = 20+15=35 people.
What is the name of the largest desert in the world?
The Sahara Desert.