OLSAT OLSAT Quantitative Reasoning 1 — Questions and Answers
Question 1: Which number comes next in the series: 3, 6, 9, 12, ___?
- 12
- 15 (Correct answer)
- 18
- 21
Correct answer: 15
Each number increases by 3, so 12 + 3 = 15.
Question 2: If 4 × □ = 24, what is □?
Correct answer: 6
4 × 6 = 24, so the missing value is 6.
Question 3: What is the next number in the pattern: 1, 4, 9, 16, ___?
- 20
- 25 (Correct answer)
- 36
- 49
Correct answer: 25
The pattern is perfect squares (1², 2², 3², 4², 5²), so the next number is 5² = 25.
Question 4: Which number is 10 more than 45?
- 35
- 50
- 55 (Correct answer)
- 65
Correct answer: 55
45 + 10 = 55.
Question 5: If there are 3 groups of 7 apples, how many apples are there in total?
- 10
- 14
- 21 (Correct answer)
- 28
Correct answer: 21
3 × 7 = 21 apples in total.
Question 6: Which number is missing? 2, 4, ___, 8, 10
Correct answer: 6
The series counts by 2s (even numbers), so the missing number between 4 and 8 is 6.
Question 7: A farmer has 30 eggs divided equally into 5 baskets. How many eggs are in each basket?
Correct answer: 6
30 ÷ 5 = 6 eggs per basket.
