MATHEMATIC QUIZZES (STEM)

A wind turbine spins 3⁴ times in one hour. How many times does it spin in 3 hours?

• 81 spins
• 243 spins
• 324 spins
• 27 spins

Answer explanation

Link of the image (optional)

The distance from Earth to a satellite is 3.6 × 10⁶ m. What is the total signal distance for a round trip?

• 7.2 × 10⁶ m
• 3.6 × 10⁶ m
• 1.8 × 10⁶ m
• 3.6 × 10⁵ m

A student saves RM50 monthly with 3% simple interest per annum. What is the interest after 1 year?

• RM12
• RM15
• RM18
• RM20

Ali buys a RM1,200 laptop using a credit card with 1.5% monthly interest. What is the amount after one month?

• RM1,180
• RM1,218
• RM1,220
• RM1,215

In a 1:200 scale drawing, a room is 5 cm. What is the actual length?

• 5 m
• 20 m
• 10 m
• 15 m

A right triangle has a 30° angle and a 10 cm hypotenuse. What is the length opposite the angle?

• 5 cm
• 10 cm
• 8.66 cm
• 7.5 cm

A machine processes 2⁵ files per second. How many in 2 seconds?

• 64 files
• 128 files
• 32 files
• 96 files

If 1.2 × 10⁵ people commute daily in a city of 2.5 × 10⁶, what percent commute?

• 0.048%
• 4.8%
• 48%
• 0.48%

RM1,000 invested for 2 years at 4% per annum. compound interest. What is the final amount?

• RM1,080
• RM1,081.60
• RM1,040
• RM1,100

In a triangle, if tan θ = 1, what is θ?

• 30°
• 60°
• 90°
• 45°