Question

Which of the following is in Inverse proportion? *

a)number of persons and the number of days to consume a fixed quantity of food

b)Distance travelled and the time taken by a boat at a fixed speed

c) Number of goods purchased and the cost paid for them

d) 6 Kg apples cost Rs.240 and 18 Kg apples cost Rs.720​

Answer 1

Step-by-step explanation:

a is the answer I think so

Answer 2

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.