Three numbers are triangular numbers with odd-numbered positions in the triangular sequence. Which number is different?
Correct answer: D. 36
- A. 6
- B. 15
- C. 28
- D. 36
Explanation
6, 15 and 28 are the 3rd, 5th and 7th triangular numbers. 36 is the 8th triangular number, so its position is even.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Critical Thinking
Critical thinking examines how conclusions follow from evidence, including claims, assumptions, arguments, inferences and relevant facts. Questions ask you to identify hidden assumptions, distinguish strong from weak evidence, assess cause and effect, recognise common reasoning errors, and decide which statement strengthens or weakens an argument.
Practise Critical Thinking
395 free Critical Thinking MCQs from Analytical and Logical Reasoning, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Analytical and Logical Reasoning questions like this
Analytical and Logical Reasoning is on 27 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Critical Thinking questions
Three words are made from exactly the same five letters in a different order. Which word is different?
Three entries are days of the week. Which entry belongs to a different category?
Three of these numbers are perfect cubes. Identify the number that does not fit.
Three numbers are cubes of prime numbers. Which number does not belong?
Three numbers can be written as the product of consecutive integers, with the smaller integer even. Find the odd one out.
Three numbers are prime, and their digits remain prime when reversed. Which number is different?