Multiple choice

A car covers its journey at the speed of 60 km/hr. in 15 hours. If the same distance is to be covered in 9 hours, by how much the speed of car will have to increase ?

  1. 60 km./hr.

  2. 50 km./hr.

  3. 40 km./hr.

  4. 30 km./hr.

  5. 20 km./hr.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Distance = Speed × Time = 60 × 15 = 900 km. New speed = 900/9 = 100 km/hr. Increase = 100-60 = 40 km/hr, which is option C.

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