After meeting, speed ratio = √(ratio of remaining times)

CAT has tested this idea 4 times across 4 papers, from 2020 to 2023. Solve one, and the others are the same method with different numbers or wording, which is why repeated concepts are the most efficient thing to practise.

QuestionWhat it asksAnswer
CAT 2023 Slot 1 · QA Q14take 6 h and 24 h after meeting; find distance972
CAT 2020 Slot 1 · QA Q745 and 20 minutes after meeting; find second speedA
CAT 2020 Slot 2 · QA Q201 and 4 minutes after crossing; speed ratioA
CAT 2022 Slot 1 · QA Q6one train's total time and other's post-meeting timeA

Part of Time, Speed & Distance (48 questions since 2017).