26.

Two trains running in opposite directions at 40kmph and 50kmph, cross each other in 30sec. the length of one train is 250m, then find the length of other one? Two trains running in opposite directions at 40kmph and 50kmph, cross each other in 30sec. the length of one train is 250m, then find the length of other one?

A. 440m B. 490m
C. 500m D. 510m
Answer and Explanation
Answer:C
Explanation: L = S*T L = 90*5/18*30 L = 750m Length of second train= total length - Length of first train = 750 - 250 = 500m
27.

Two trains are running at 60 Kmph and 42 Kmph respectively, in same direction. Fast train completely passes a man sitting in the slower train in 30sec. what is the length of the faster train?

A. 100m B. 125m
C. 150m D. 175m
Answer and Explanation
Answer:C
Explanation: L = S * T L = 18 * 5/18 * 30 (in same direction Speed = first train - second train) = 150m
28.

A train crosses a platform of 120m in 15sec, same train crosses another platform of length 180m in 18sec. then find the length of the train?

A. 175m B. 180m
C. 185m D. 170m
Answer and Explanation
Answer:B
Explanation: Length of the train be ‘X’ X + 120/15 = X + 180/18 6X + 720 = 5X + 900 X = 180m
29.

A train crosses a platform of 150m in 15sec, same train crosses another platform of length 250m in 20sec. then find the length of the train?

A. 150m B. 165m
C. 155m D. 160m
Answer and Explanation
Answer:A
Explanation: Length of the train be ‘X’ X + 150/15 = X + 250/20 4X + 600 = 3X + 750 X = 150m
30.

A train 400m long can cross an electric pole in 20sec, then find the speed of the train?

A. 65 Kmph B. 70 Kmph
C. 72 Kmph D. 75 Kmph
Answer and Explanation
Answer:C
Explanation: Length = Speed * time Speed = L/T S = 400/20 S = 20 M/Sec Speed= 20*18/5 (To convert M/Sec in to Kmph multiply by 18/5) Speed = 72 Kmph