COMPASS Numerical Skills and Pre-Algebra 3

Question 1

A store sells pens at 3 for $1.50. How much do 10 pens cost?

Accepted Answer

$5.00

Answer

Each pen costs $0.50, so 10 pens cost 10 × $0.50 = $5.00.

Question 2

What is 40% written as a fraction in lowest terms?

Accepted Answer

2/5

Answer

40% = 40/100 = 2/5 after dividing by the GCF of 20.

Question 3

Which expression represents 'six less than twice a number n'?

Accepted Answer

2n − 6

Answer

'Twice a number' is 2n, and 'six less than' means subtract 6, giving 2n − 6.

Question 4

What is the square root of 144?

Accepted Answer

12

Answer

√144 = 12 because 12 × 12 = 144.

Question 5

If a car travels 180 miles in 3 hours, what is its average speed?

Accepted Answer

60 mph

Answer

Speed = distance ÷ time = 180 ÷ 3 = 60 mph.

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