International Math Olympiad_Selection Part 1_SMP Plus Amanah

A train travels 120 km at a speed of 60 km/h. How long does it take to reach its destination?

• 4 hours

• 2 hours

• 3 hours

• 1 hour

If the sum of three consecutive integers is 72, what are the integers?

• 20, 21, 22

• 25, 26, 27

• 21, 22, 23

• 23, 24, 25

A rectangle has a length that is twice its width. If the perimeter is 48 cm, what are the dimensions of the rectangle?

• Width: 8 cm, Length: 16 cm

• Width: 6 cm, Length: 12 cm

• Width: 10 cm, Length: 20 cm

• Width: 12 cm, Length: 24 cm

In a class of 30 students, 18 are girls. What percentage of the class are boys?

• 30%

• 40%

• 50%

• 25%

A store sells a shirt for $40 after a 20% discount. What was the original price of the shirt?

• $60

• 50

• $30

• $45

If 5x + 3 = 23, what is the value of x?

• 2

• 4

• 5

• 7

A triangle has sides of lengths 7 cm, 24 cm, and 25 cm. Is this triangle a right triangle?

• This triangle has an angle greater than 90 degrees.

• Yes, this triangle is a right triangle.

• This triangle is an equilateral triangle.

• No, this triangle is not a right triangle.

The average of five numbers is 20. If one number is removed, the average becomes 18. What is the removed number?

• 22

• 20

• 28

• 18

A circle has a radius of 7 cm. What is the area of the circle? (Use π = 22/7)

• 50 cm²

• 200 cm²

• 154 cm²

• 100 cm²

If a car travels 150 km in 2 hours, what is its average speed in km/h?

• 60 km/h

• 90 km/h

• 100 km/h

• 75 km/h