Question

taken by a 200m long train running
at 36 km/hr. to crose
a boy standing on a platom.
find the time
(a) 22 sec.
(b) 21 sec
(c) 25 sec
(d 20 sec.​

Answer 1

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Refer to the attachment.....

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Answer 2

Answer:

D 20sec

Step-by-step explanation:

Time=distance/speed

Distance = 200m=0.2 km

Speed = 36 km/ hr

so,

Time= 0.2/36

= 1/180

= 1/180*3600

= 20 sec

Hence , showed