Question

The number of workers on a job and the time taken to complete the job is an example of (A) direct

proportion (B) inverse proportion (c) cannot be said (D) none of the above​

Answer 1

Answer:

i) We know that more is the number of workers to do a job, less is the time taken to finish the job.

So, it is a case of inverse proportion.

(ii) Considering uniform speed, as the distance to be travelled increases, the time taken to cover it will also increase.  

So, this is a case of direct variation.  

(iii) Clearly, more is the area of cultivated land, more is the crop harvested.  

So, it is a case of direct proportion.  

(iv) We know that the more will be the speed of the vehicle, the distance will be covered in lesser time.

So, it is a case of inverse proportion.  

(v) Clearly, more is the population, less is the area of land per person in a country.  

So, it is a case of inverse proportion.

Step-by-step explanation:

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Answer 2

Answer:

(B) inverse proportion

Step-by-step explanation:

Two quantities are said to be in inverse proportion if the second quantity decreases with an increase in the first quantity. If the number of workers on a job is increased, it will take less time. Hence, the number of workers on a job and the time taken to complete the job is an example of inverse proportion.