Arvind is older than Bhanu. Charu is younger than Bhanu but older than Elina. Daksh is older than Charu. Which of the following must be true?

Arvind is the oldest.Correct answerYour answerDaksh is older than Bhanu.Correct answerYour answerElina is the youngest.Correct answerYour answerBhanu is the second oldest.Correct answerYour answer

Show the answer and explanation

CorrectNot quiteAnswer C

Correct answer: C

Arvind > Bhanu > Charu > Elina (oldest first), and Daksh > Charu.
Daksh can be above Arvind, between Arvind and Bhanu, or between Bhanu and Charu: three possible orders.
In all three, Elina is below Charu and Daksh, so Elina is always the youngest.
Arvind is the oldest, Daksh is older than Bhanu and Bhanu is the second oldest are each true in some orders but not all.

Worth noting

'Must be true' means true in EVERY order that fits the clues. A statement that is true in one possible order is only 'could be true'.

Concept: Must be true across all possible orders
Typical timeTypical: 70 s
Your timeYours: —

The rule this testsOrdering by comparison

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Ten questions from Ranking and Ordering, at your own pace.

Arvind is older than Bhanu. Charu is younger than Bhanu but older than Elina. Daksh is older than Charu. Which of the following must be true?

Explanation