Category : 8th Class
If the two quantities are related with each other than change in one quantity will produce the corresponding change in the other quantity. The variation may be that if we increase or decrease the one quantity then other quantity may also increase or decrease and vice-versa. If increase in one quantity results in increase in other quantity then it is called as direct variation and if reverse happens then it is called as indirect variation. For example increase in the cost with the increase in quantity is a direct variation whereas decrease in the time taken for a work if we increase the number of worker then it is a inverse variation.
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