App Logo

No.1 PSC Learning App

1M+ Downloads
A train 130 m long passes a bridge in 21 seconds moving with a speed of 90 km/hr. Find the length of bridge.

A395m

B540m

C485m

D750m

Answer:

A. 395m

Read Explanation:

90 x 5/18= (130+length of bridge)/21 25=(130+x)/21 25 x 21 =130+x 525=130+x x=525-130=395


Related Questions:

A train 100 m long is running at the speed of 30 km/hr. Find the time taken by it to pass a man standing near the railway line
How long will a 150 m long train running at a speed of 60 kmph take to cross the bridge of 300 m long?
A 150 meter long train crossed a man walking at a speed of 6 km in the oppo- site directions in 6 seconds. The speed of the train in km/hr is
A man completes his journey in 8 hours. He covers half the distance at 40 kmph and the rest at 60 kmph. The length of the journey is?
140 മീറ്റർ നീളമുള്ള ഒരു തീവണ്ടി 72 കി.മീ / മണിക്കുർ വേഗതയിൽ സഞ്ചരിക്കുന്നു. ഒരു ടെലഫോൺ പോസ്റ്റ് കടന്നുപോകുന്നതിന് ഈ തീവണ്ടിക്ക് എന്തു സമയം വേണം?