A 260 m long train running at the speed of 120 km/hr crosses another train running in opposite direction at the speed of 80 km/hr in 9 sec. What is the length of the other train ?

Question

নিচের অপশন গুলা দেখুন

• 240 mts
• 270 mts
• 250 mts
• 260 mts

Answer 1

সঠিক উত্তর হচ্ছে: 240 mts

ব্যাখ্যা:

Relative speed = 120 + 80 = 200 km/hr.
= 200 x 5/18 = 500/9 m/sec.

Let the length of the other train be L mts.
Then, (L + 260)/9 = 500/9 => L = 240 mts.