NTN Mathematics 2

Question 1

What is the value of 4² + 3³?

Accepted Answer

43

Answer

4² = 16 and 3³ = 27, so 16 + 27 = 43.

Question 2

A store sells items at a 25% discount. If the original price is $80, what is the sale price?

Accepted Answer

$60

Answer

Discount = 25% of $80 = $20, so the sale price = $80 − $20 = $60.

Question 3

What is the least common multiple (LCM) of 6 and 8?

Accepted Answer

24

Answer

The LCM of 6 and 8 is 24, the smallest number divisible by both.

Question 4

If 5 workers can complete a job in 12 days, how many days will it take 10 workers to complete the same job?

Accepted Answer

6 days

Answer

Doubling the workers halves the time: 12 ÷ 2 = 6 days.

Question 5

What is the perimeter of a square with a side length of 9 inches?

Accepted Answer

36 inches

Answer

Perimeter of a square = 4 × side = 4 × 9 = 36 inches.

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