SCAT Quantitative 3

Question 1

Column A: The number of prime numbers between 10 and 20. Column B: 4. Which is greater?

Accepted Answer

They are equal

Answer

Primes between 10 and 20: 11, 13, 17, 19 — that is 4 primes, so both columns equal 4.

Question 2

Sarah has $45.00 and spends 1/3 of it on lunch and 2/5 of the remainder on a book. How much does she have left?

Accepted Answer

$18.00

Answer

After lunch: $45 − $15 = $30; book: 2/5 × $30 = $12; remaining: $30 − $12 = $18.

Question 3

What is the value of √144 + √25?

Accepted Answer

17

Answer

√144 = 12 and √25 = 5, so 12 + 5 = 17.

Question 4

Column A: (10 − 4) × 3. Column B: 10 − (4 × 3). Which is greater?

Accepted Answer

Column A is greater

Answer

Column A: 6 × 3 = 18; Column B: 10 − 12 = −2; Column A (18) is greater.

Question 5

A class of 30 students scored an average of 82 on a test. What was the total number of points scored?

Accepted Answer

2,460

Answer

Total points = average × number of students = 82 × 30 = 2,460.

(SCAT) School and College Ability Test Practice Test