Math and Science Olympics - 2025 (RED TEAM)

Simplify: 5x + 3x − 2x

• 6x

• 7x

• 8x

• 10x

Convert 3/5 into a percentage.

• 40%

• 50%

• 60%

• 80%

Find the value of x if x + 7 = 12.

• 3

• 5

• 7

• 10

What is the area of a rectangle with length 8 cm and width 5 cm?

• 20 cm²

• 30 cm²

• 40 cm²

• 50 cm²

Expand: (x+3) (x+2) .

• x² + 5x + 6

• x² + 6x + 5

• x² + 3x + 2

• x² + 2x + 3

 When an object is immersed in a liquid, the upthrust that acts on the object is equal to the

• A. mass of the object

• B. weight of the object

• C. mass of the liquid displaced

• D. weight of the liquid displaced

Which of the following elements is a macronutrient required by plants to synthesise protein?

• A. Magnesium

• B. Calcium

• C. Iron

• D. Nitrogen

Which electromagnetic wave has the shortest wavelength?

• A. Radio wave

• B. Microwave

• C. Gamma ray

• D. Ultraviolet

What is the main gas in the Earth's atmosphere?

• a) Oxygen

• b) Nitrogen

• c) Carbon dioxide

• d) Hydrogen

What is the Earth's largest ocean?

• a) Atlantic

• b) Indian

• c) Pacific

• d) Arctic