Assertion and reason: sharing the work

Exercise and reference answers

Questions

1. Reason

   It measures the job itself, which does not change.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   Worker-days stays the same however the workforce is arranged.

2. Reason

   Workers and days multiply to a constant for a fixed job.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   Halving the workforce doubles the days needed.

3. Reason

   Work and days vary directly when the workforce is held fixed.

   Verdict

   Both are true; the reason explains the assertion.

   Assertion

   Doubling the job doubles the days, with the workforce unchanged.

Explanation