Trains: Test 1

10 questions · 15 minutes · scoring and calculator rules shown before you begin

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Trains Test 1: questions and answers

Take the test first if you want an honest score. The answers and solutions below are folded away until you open them.

  1. 1. A train 372 m long runs at 59 km/h. How many seconds does it take to pass a pole?
    1. 21.7
    2. 24.7
    3. 19.7
    4. 22.7

    Reference: q-b670131a-82 · Report this question

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    Answer: D. 22.7

    Time = distance / speed = 372 / (59 × 5/18) = 22.7 seconds.
  2. 2. A 162 m train crosses a 187 m platform at 36 km/h. Find the time in seconds.
    1. 37.9
    2. 34.9
    3. 35.9
    4. 36.9

    Reference: q-6d68ef19-77 · Report this question

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    Answer: B. 34.9

    The train covers 349 m. At 36 km/h its speed is 10 m/s, so time = 34.9 seconds.
  3. 3. A 267 m train overtakes a man walking at 29 km/h in the same direction. If the train runs at 56 km/h, how long does it take?
    1. 34.6
    2. 36.6
    3. 32.6
    4. 35.6

    Reference: q-43aa3add-125 · Report this question

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    Answer: D. 35.6

    Relative speed = 27 km/h = 7.5 m/s. Time = 267 / relative speed = 35.6 seconds.
  4. 4. Two trains 166 m and 248 m long run towards each other at 56 km/h and 39 km/h. Find their crossing time in seconds.
    1. 18.69
    2. 17.69
    3. 16.69
    4. 15.69

    Reference: q-ec403b3d-116 · Report this question

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    Answer: D. 15.69

    Together they cover 414 m at 95 km/h. Time = 15.69 seconds.
  5. 5. A train moving at 49 km/h crosses a pole in 20 seconds. What is its length?
    1. 282.22
    2. 257.22
    3. 272.22
    4. 267.22

    Reference: q-a69ef685-76 · Report this question

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    Answer: C. 272.22

    Length = speed × time = 13.61 × 20 = 272.22 m.
  6. 6. A train 250 m long runs at 46 km/h. How many seconds does it take to pass a pole?
    1. 17.57
    2. 19.57
    3. 21.57
    4. 16.57

    Reference: q-10ac7b59-82 · Report this question

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    Answer: B. 19.57

    Time = distance / speed = 250 / (46 × 5/18) = 19.57 seconds.
  7. 7. A 113 m train crosses a 107 m platform at 44 km/h. Find the time in seconds.
    1. 15
    2. 20
    3. 18
    4. 16

    Reference: q-d44cf120-77 · Report this question

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    Answer: C. 18

    The train covers 220 m. At 44 km/h its speed is 12.22 m/s, so time = 18 seconds.
  8. 8. A 208 m train overtakes a man walking at 23 km/h in the same direction. If the train runs at 67 km/h, how long does it take?
    1. 20.02
    2. 17.02
    3. 14.02
    4. 16.02

    Reference: q-7a7e1352-125 · Report this question

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    Answer: B. 17.02

    Relative speed = 44 km/h = 12.22 m/s. Time = 208 / relative speed = 17.02 seconds.
  9. 9. Two trains 128 m and 145 m long run towards each other at 48 km/h and 42 km/h. Find their crossing time in seconds.
    1. 9.92
    2. 12.92
    3. 10.92
    4. 13.92

    Reference: q-7f7c18e-116 · Report this question

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    Answer: C. 10.92

    Together they cover 273 m at 90 km/h. Time = 10.92 seconds.
  10. 10. A train moving at 73 km/h crosses a pole in 17 seconds. What is its length?
    1. 344.72
    2. 349.72
    3. 329.72
    4. 339.72

    Reference: q-eeb91ffc-76 · Report this question

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    Answer: A. 344.72

    Length = speed × time = 20.28 × 17 = 344.72 m.

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