MATH5

What is the correct definition of a ratio?

• A comparison of two quantities using division

• A method of multiplying fractions

• A process of simplifying numbers

The ratio of boys to girls in a class is 4:5. If there are 36 students, how many are boys?

• 16

• 18

• 20

If a profit of 3,000 is divided among three persons in a 3:4:5 ratio, how much does the second person receive?

• 800

• 1,000

• 1,200

The sum of the angles in a triangle is always:

• 90°

• 120°

• 180°

A sum of money is divided among A, B, and C in the ratio 2:3:5. If B receives ₱900, what is the total sum?

• ₱2,500

• ₱3,000

• ₱1,800

A rope is cut into 3 parts in the ratio 3:4:6. If the shortest part is 54 cm, what is the length of the longest part?

• 90 cm

• 108 cm

• 120 cm

What type of proportion is used when increasing one value decreases the other?

• Direct proportion

• Inverse proportion

• Partitive proportion

Fourteen identical pipes can fill a water tank in 18 minutes. How long will it take 21 pipes to fill the same tank?

• 12 minutes

• 15 minutes

• 16 minutes

If 6 men can paint a wall in 64 hours, how long will it take 8 men to complete the task?

• 50 hours

• 48 hours

• 45 hours

A bookshelf holds 30 books, each 3 cm thick. How many books can the shelf hold if each book is 2.5 cm thick?

• 35 books

• 36 books

• 40 books