Assertion and reason: journeys

Exercise and reference answers

Questions

1. Reason

   The route is fixed, so speed and time vary inversely.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   Cycling instead of walking cuts the time to school.

2. Reason

   At uniform speed, distance is directly proportional to time.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   Two hours at uniform speed covers twice the ground of one hour.

3. Reason

   Speed multiplied by time gives distance.

   Verdict

   The assertion is false and the reason is true.

   Assertion

   Raising the speed on a fixed route raises the distance.

Explanation