Question

length of a train is 180 M and length of a platform is 120 m. A train cover the platform at 20 seconds find out the speed of the train in kilometre per hour​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

${\huge{\overbrace{\underbrace{\purple{SoluTion}}}}}$

Total distance = Length of train + Length of platform

Total distance = 180 m + 120 m

Total distance = 300 m

■ Converting :-

$\sf {\because 1000 \ m = 1 \ km}\\\\\\\sf {\therefore 300 \ m = 0.3 \ km}$

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Time = 20 seconds

■ Converting :-

$\sf {\because 3600 \ seconds = 1 \ hour}\\\\\\\sf {\therefore 20 \ seconds =\frac{1}{180} \ hour}$

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$\boxed {\sf {\beacuse Speed = \frac{Distance}{Time}}}\\\\\\\\\\\sf {\therefore \ 0.3 \times 180 }\\\\\\\sf {\mapsto \ 54 \ km/hr}$

∴ Speed = 54 km/hr