Question

The Meera runner takes 26 seconds to pass a platform running at a speed of 24 kmph. It takes 9 sec to cross a man who is walking
at 4 kmph in opposite direction. Find the length of the platform.
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Answer 1

Answer:

173.3

Step-by-step explanation:

First we convert the given speed into m/s

24 × 1000

3600

= 20 m/s

3

Now, Length Of Platform = Speed × Time

L = 20 × 26

3

L = 520

3

L = 173.3 metre.

Answer 2

Answer:

Length of the platform is 160 m.

Step-by-step explanation:

Given meera takes 26 seconds

It is probably best to convert to meters so we can find the length of the platform.

That time speed of meera = 24 km/hr =

$24 \times \frac{5}{18} m {s}^{ - 1} = \frac{20}{3} m {s}^{ - 1}$

We know,

$distance = speed \times time$

So

$distance = \frac{20}{3} \times 24 = 160 \: m$

Length of the platform is 160 m.