A train passes two bridges of length 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is:

Question

নিচের অপশন গুলা দেখুন

• 60 m
• 300 m
• 1200 m
• 200 m

Answer 1

সঠিক উত্তর হচ্ছে: 200 m

ব্যাখ্যা: Let, the length of the train be x. As in both cases, the speed of the train is constant, and then we have; (x+800)/100 = (x+400)/60 ,=> x=200m