The A.M. of the price per kg of rice at 10 different places was Rs 4.85. after a week, the price per kg was increased by 20 paise at 3 places and decreased by 10 paise at one place.Find the new average of price per kg.

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Solution

Total Price = $(3 \times 5.05 + 4.75 + 6 \times 4.85)$ = Rs. 49
Therefore, avg price $= \frac{49}{10}$ = Rs. 4.90

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The A.M. of the price per kg of rice at 10 different places was Rs 4.85. after a week, the price per kg was increased by 20 paise at 3 places and decreased by 10 paise at one place.Find the new average of price per kg.

Total Price = (3×5.05+4.75+6×4.85) = Rs. 49 Therefore, avg price =4910 = Rs. 4.90

Total Price = $(3 \times 5.05 + 4.75 + 6 \times 4.85)$ = Rs. 49
Therefore, avg price $= \frac{49}{10}$ = Rs. 4.90