CDS Maths Trick: Train Crosses Platform in 15 Seconds Fastest Way to Find Platform Length

Описание: CDS Quantitative Aptitude – Speed, Distance & Time Mastery!
In this 4-minute video, we solve a real exam-style question:
A train 180 m long crosses a platform in 15 seconds at 90 km/h. What is the platform length?
👉 Learn the shortcut trick to solve in under 10 seconds
👉 Convert speed to m/s instantly: 90 ÷ 3.6 = 25 m/s
👉 Total distance = speed × time = 25 × 15 = 375 m
👉 Platform length = 375 − 180 = 195 m
This concept is frequently asked in CDS, NDA, SSC, RRB, Bank PO and other competitive exams.
📌 Watch till the end for the exam hack formula and common traps to avoid.

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These videos are for helping you learn how to solve problems and once you learn how to solve, how to become faster and accurate.

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