Question 57

The number of workers and the time to complete a job is a case of direct proportion.

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Solution

False
The number of workders and the time to complete a job is a case of indirect proportion.
e.g. If 60 workers can complete a work in 10 days.
Then, 120 workers can complete the same work in 5 days.

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Question 57

The number of workers and the time to complete a job is a case of direct proportion.

The number of workers for a job and the time needed to complete the job

Question 01.
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.

Question 01.
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.

Which of these are examples of direct proportion?
(i) Cost price to grocery.
(ii) Time required in completing a work to the number of workers doing that work.
(iii) Distance covered and time taken to cover that distance when speed is constant.

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Inverse Proportion

Standard VIII Mathematics

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Question 57 The number of workers and the time to complete a job is a case of direct proportion.

False The number of workders and the time to complete a job is a case of indirect proportion. e.g. If 60 workers can complete a work in 10 days. Then, 120 workers can complete the same work in 5 days.

Question 57

The number of workers and the time to complete a job is a case of direct proportion.

False
The number of workders and the time to complete a job is a case of indirect proportion.
e.g. If 60 workers can complete a work in 10 days.
Then, 120 workers can complete the same work in 5 days.