Multiple choice

A train moving at the speed of 40 km/h takes 2 hours more to cover a certain distance than a train moving at 60 km/h. The distance is

  1. 200 km

  2. 240 km

  3. 250 km

  4. 300 km
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Let distance be D. D/40 - D/60 = 2. (3D - 2D)/120 = 2. D/120 = 2, so D = 240 km.

AI explanation

Using the formula Distance equals S1 multiplied by S2 multiplied by the time difference, divided by the speed difference, set S1 to 60 km/h and S2 to 40 km/h. The time difference is 2 hours and the speed difference is 20 km/h. The calculation is 60 multiplied by 40 multiplied by 2, all divided by 20, resulting in 240 km.

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