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Question 61In questions which of the following vary directly and which vary inversely with each other and which are neither of the two?(i) Number of students in a hostel and consumption of food.(ii) Area of the walls of a room and the cost of whitewashing the walls.(iii) The number of people working and the quantity of work.(iv) Simple interest on a given sum and the rate of interest.(v) Compound interest on a given sum and the sum invested.

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Question 61



In questions which of the following vary directly and which vary inversely with each other and which are neither of the two?

(i) Number of students in a hostel and consumption of food.

(ii) Area of the walls of a room and the cost of whitewashing the walls.

(iii) The number of people working and the quantity of work.

(iv) Simple interest on a given sum and the rate of interest.

(v) Compound interest on a given sum and the sum invested.





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