Question

A train crosses a platform and a tunnel in 18 and 32 seconds respectively. The speed of the train and length of the train are 45 kmph and 140 metres respectively. Find the length of platform is approximately what percent less than the length of tunnel?

Answer 1

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Here are some safety tips to prepare for rising water—and what to do once a flood has begun.

Before a Flood

• Avoid building in a floodplain.

• Construct barriers (levees, beams, floodwalls) to stop floodwater from entering your home.

• Seal walls in basements with waterproofing compounds to avoid seepage.

• If a flood is likely in your area, listen to the radio or television for information.

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