Multiple choice

An Aeroplan covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1.66 hours, it must travel at a speed of:

  1. 300 kmph

  2. 20 kmph

  3. 725 kmph

  4. 720 kmph

  5. 710 kmph
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D Correct answer
Explanation

Distance = 240 * 5 = 1200 km. New speed = 1200 / 1.666... = 1200 / (5/3) = 1200 * 3 / 5 = 720 kmph.

AI explanation

Using the basic distance formula, Distance equals Speed multiplied by Time, multiply 240 kmph by 5 hours to find the total distance of 1200 km. To find the new required speed, divide this distance by the new time of 1.66 hours (which is 5 over 3). The calculation 1200 divided by 5 over 3 yields a required speed of 720 kmph.

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