Question

Please tell me about the direct and in verse variation ques.
Q. A train 280 m long is running at a speed of 42 km/he. How much time will it take to pass a mam standing on a platform

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Answer 1

Answer:

Speed = 42 km/h or 42000 metres , Distance / Train length =

42,000 metres ÷ 3600 seconds =.11.666 metres per second Train = 280 metres long ÷ 11.666 = 24 seconds

24 sec is your answer ✔️✔️

Answer 2

$\blue\star$$\mathrm\red{Given:-}$

➟ speed :- 42km/h = 42000m

$\blue\star$$\mathrm\red{To\:find:-}$

➟ How much time will it take to pass a mam standing on a platform?

$\blue\star$$\mathrm\red{Solution:-}$

we know that,

$speed = \frac{distance}{time \: taken}$

Then,

$\: \: \: \: \: \: ⇒ \frac{42000}{3600}$

$\: \: \: \: \: \: ⇒11.666m$

$\mathrm{per\: second\:train =}$

$\: \: \: \: \: ⇒ \frac{280}{11.666}$

$\: \: \: \: \: \: ⇒24s$

➟ $\mathrm{Time\: required\:is\:24\:second\:280}$

$\mathrm{metre\: train\:will\:take\:to\:pass\:the\:man}$

$\mathrm{while\: the\: train\:speed\:is\:42km/h}$

_____________________________________

$\blue\star$$\mathrm\red{Formula\:used:-}$

$\mathrm{speed=distance/time}$