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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 |
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Answer» (i) The number of workers and the time to complete the job is in inverse proportion because less workers will take more time to complete a work and more workers will take less time to complete the same work. (ii) Time and distance covered in direct proportion. (iii) It is a direct proportion because more are of cultivated land will yield more crops. (iv) Time and speed are inverse proportion because if time is less, speed is more. (v) It is a inverse proportion. If the population of a country increases, the area of land per person decreases. |
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