Q. 14.2( 92 Votes )

# Which of the following are in inverse proportion?

(i) The number of workers on a job and the time to complete the job.

(ii) The time taken for a journey and the distance travelled in a uniform speed.

(iii) Area of cultivated land and the crop harvested.

(iv) The time taken for a fixed journey and the speed of the vehicle.

(v) The population of a country and the area of land per person.

Answer :

(i) Yes, These are in inverse proportion because if there are more workers, then it will take lesser time to complete that job.

(ii) No, these are not in inverse proportion because in more time, we may cover more distance with a uniform speed. It is a direct Proportion.

(iii) No, these are not in inverse proportion because in more area, more quantity of crop may be harvested. It is a direct Proportion.

(iv) Yes, These are in inverse proportion because with more speed, we may complete a certain distance in a lesser time.

(v) Yes, These are in inverse proportion because if the population in increasing, then area of the land per person will be decreasing accordingly.

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