Section-D(4 marks each)
Q 28) A train 120 m long is running at a speed of 50 km/hr. What time will it take to cra
130 m long bridge ?
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Step-by-step explanation:
speed = distance/time
distance = 130 +120 = 250m = 1/4km
speed =50kmph
50= 1/4 ÷ time
time = 1/4÷50= 1/(4×50) ×60 ×60
= 3600/200=18s
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