Amazon Aptitude 3 — Questions and Answers

Question 1: A team completes 40% of a project in 10 days. At the same rate, how many more days are needed to complete the project?

12
15 (Correct answer)
20
25

Correct answer: 15

40% in 10 days → 100% takes 25 days total. Remaining = 25 - 10 = 15 days.

If 40% is done in 10 days, the full project takes 10 ÷ 0.40 = 25 days. Subtracting the 10 days already worked leaves 15 more days needed. This type of percentage-rate problem frequently appears in Amazon aptitude assessments.

Question 2: A box holds 48 items. If a pallet holds 12 boxes, how many items are on 5 pallets?

2,400
2,760
2,880 (Correct answer)
3,120

Correct answer: 2,880

48 × 12 = 576 items per pallet. 576 × 5 = 2,880 items on 5 pallets.

Each pallet holds 48 × 12 = 576 items. Five pallets hold 576 × 5 = 2,880 items total. Multi-step multiplication is a standard skill tested in Amazon warehouse and operations aptitude tests.

Question 3: If the ratio of fulfilled to unfulfilled orders is 9:1, and there are 450 unfulfilled orders, what is the total number of orders?

4,050
4,500 (Correct answer)
4,950
5,400

Correct answer: 4,500

Ratio 9:1 means total parts = 10. If 1 part = 450, then total = 450 × 10 = 4,500.

In a 9:1 ratio, the unfulfilled portion is 1 part. If 1 part = 450 orders, then the total (10 parts) = 4,500 orders. Ratio problems are common in Amazon aptitude tests, reflecting real inventory and logistics scenarios.

Question 4: Find the missing number: 81, 27, 9, 3, ?

0
1 (Correct answer)
2
4

Correct answer: 1

Each number is divided by 3: 81÷3=27, 27÷3=9, 9÷3=3, 3÷3=1.

This is a geometric sequence with a common ratio of 1/3. Each term is divided by 3, so 3 ÷ 3 = 1. Geometric sequences with division are a frequent feature of Amazon numerical aptitude assessments.

Question 5: A product costs $240 after a 20% discount. What was the original price?

$280
$290
$300 (Correct answer)
$320

Correct answer: $300

If discounted price = 80% of original, then original = $240 ÷ 0.80 = $300.

A 20% discount means the buyer pays 80% of the original price. Solving $240 = 0.80 × original price gives original price = $300. Reverse percentage calculations are commonly tested in Amazon aptitude sections.

Question 6: Three consecutive even numbers sum to 72. What is the largest of the three numbers?

22
24
26 (Correct answer)
28

Correct answer: 26

Let the numbers be n, n+2, n+4. Then 3n+6=72 → 3n=66 → n=22. Largest = 22+4=26.

Consecutive even numbers differ by 2. Setting up n + (n+2) + (n+4) = 72 gives 3n + 6 = 72, so n = 22. The three numbers are 22, 24, and 26, with 26 being the largest. Algebraic word problems like this are standard in Amazon aptitude tests.

Amazon Aptitude 3

A team completes 40% of a project in 10 days.
At the same rate, how many more days are needed to complete the project?